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African Bush Elephant
Comparative view of the human and elephant frames, c1860.

Elephants are large land mammals in two genera of the family Elephantidae: Elephas and Loxodonta. Three species of elephant are living today: the African Bush Elephant, the African Forest Elephant and the Asian Elephant (also known as the Indian Elephant). All other species and genera of Elephantidae are extinct, some since the last ice age: dwarf forms of mammoths may have survived as late as 2,000 BC.[1] Elephants and other Elephantidae were once classified with other thick-skinned animals in a now invalid order, Pachydermata.

Elephants are the largest land animals now living.[2] The elephant's gestation period is 22 months, the longest of any land animal. At birth it is common for an elephant calf to weigh 120 kilograms (260 lb). They typically live for 50 to 70 years, but the oldest recorded elephant lived for 82 years.[3] The largest elephant ever recorded was shot in Angola in 1956. This male weighed about 12,000 kilograms (26,000 lb),[4] with a shoulder height of 4.2 metres (14 ft), a metre (yard) taller than the average male African elephant.[5] The smallest elephants, about the size of a calf or a large pig, were a prehistoric species that lived on the island of Crete during the Pleistocene epoch.[6]

The elephant has appeared in cultures across the world. They are a symbol of wisdom in Asian cultures and are famed for their memory and intelligence, where they are thought to be on par with cetaceans[7] and hominids.[8] Aristotle once said the elephant was "the beast which passeth all others in wit and mind".[9] The word "elephant" has its origins in the Greek ἐλέφας, meaning "ivory" or "elephant".[10]

According to observations so far, healthy adult elephants have no natural predators.[11] Although lions may take calves or weak individuals.[12][13] They are, however, threatened by human intrusion and poaching.

Contents

Taxonomy and evolution

Physical difference between an Asian (left) and African (right) elephant.

The African Elephant genus contains two (or, arguably, three) living species; whereas the Asian Elephant species is the only surviving member of the Asian Elephant genus, but can be divided into four subspecies. The African and the Asian elephant diverged from a common ancestor some 7.6 million years ago.[14]

African Elephant

Elephant crossing a river, Kenya.
African bush (savanna) elephant in Mikumi National Park, Tanzania.

The Elephants of the genus Loxodonta, known collectively as African elephants, are currently found in 37 countries in Africa.

African elephants are distinguished from Asian elephants in several ways, the most noticeable being their much larger ears. In addition, the African elephant is typically larger than the Asian elephant and has a concave back. In Asian elephants only males have tusks, but both males and females of African elephants have tusks and are usually less hairy than their Asian cousins.

African elephants have traditionally been classified as a single species comprising two distinct subspecies, namely the savanna elephant (Loxodonta africana africana) and the forest elephant (Loxodonta africana cyclotis), but recent DNA analysis suggests that these may actually constitute distinct species.[15] This split is not universally accepted by experts[16] and a third species of African elephant has also been proposed.[17]

This reclassification has implications for conservation. If there are two separate species, each will be less abundant and could be more endangered than a more numerous and wide-ranging single species. Conversely,there is also a potential danger that, if the forest elephant is not explicitly listed as an endangered species, poachers and smugglers might be able to evade the law forbidding trade in endangered animals and their products.

The Forest elephant and the Savanna elephant can also hybridise (interbreed) though their preferences for different terrains reduce such opportunities. As the African elephant has only recently been recognized to comprise two separate species, groups of captive elephants have not been comprehensively classified and some could well be hybrids.

Under the new two species classification, Loxodonta africana refers specifically to the Savanna Elephant, the largest of all elephants. It is the largest land animal, with males standing 3.2 metres (10 ft) to 4 metres (13 ft) at the shoulder and weighing 3,500 kilograms (7,700 lb) up to a reported 12,000 kilograms (26,000 lb).[18]. The female is smaller, standing about 3 metres (9.8 ft) at the shoulder[19]. Most often, Savanna Elephants are found in open grasslands, marshes, and lakeshores. They range over much of the savanna zone south of the Sahara.

The other putative species, the Forest Elephant (Loxodonta cyclotis), is usually smaller and rounder, and its tusks thinner and straighter compared with the Savanna Elephant. The Forest Elephant can weigh up to 4,500 kilograms (9,900 lb) and stand about 3 metres (10 ft) tall. Much less is known about these animals than their savanna cousins, because environmental and political obstacles make them difficult to study. Normally, they inhabit the dense African rain forests of central and western Africa, although occasionally they roam the edges of forests, thus overlapping the Savanna elephant territories and hybridizing. In 1979, Iain Douglas-Hamilton estimated the continental population of African elephants at around 1.3 million animals.[20] This estimate is controversial and is believed to be a gross overestimate,[21] but it is very widely cited and has become a de facto baseline that continues to be incorrectly used to quantify downward population trends in the species. Through the 1980s, Loxodonta received worldwide attention due to the dwindling numbers of major populations in East Africa, largely as a result of poaching. According to IUCN’s African Elephant Status Report 2007[22] there are approximately between 470,000 and 690,000 African elephants in the wild. Although this estimate only covers about half of the total elephant range, experts do not believe the true figure to be much higher, as it is unlikely that large populations remain to be discovered.[23] By far the largest populations are now found in Southern and Eastern Africa, which together account for the majority of the continental population. According to a recent analysis by IUCN experts, most major populations in Eastern and Southern Africa are stable or have been steadily increasing since the mid-1990s, at an average rate of 4.5% per year.[23][24]

Elephant populations in West Africa, on the other hand, are generally small and fragmented, and only account for a small proportion of the continental total.[25] Much uncertainty remains as to the size of the elephant population in Central Africa, where the prevalence of forest makes population surveys difficult, but poaching for ivory and bushmeat is believed to be intense through much of the region.[26] South Africa elephant population more than doubled, rising from 8,000 to over 20,000, in the thirteen years after a 1995 ban on killing the animals.[27] The ban was lifted in February 2008, sparking controversy among environmental groups.[28]

Asian Elephant

An Asian elephant named Sri Hari during Sree Poornathrayesa temple festival, Thrippunithura.

The Asian elephant, Elephas maximus, is smaller than the African. It has smaller ears, and typically, only the males have large external tusks.

The world population of Asian elephants—also called Indian Elephants—is estimated to be around 60,000, about a tenth of the number of African elephants. More precisely, it is estimated that there are between 38,000 and 53,000 wild elephants and between 14,500 and 15,300 domesticated elephants in Asia with perhaps another 1,000 scattered around zoos in the rest of the world.[29] The Asian elephants' decline has possibly been more gradual than the African and caused primarily by poaching and habitat destruction by human encroachment.

A decorated Indian elephant in Jaipur, India.
Elephant orphanage in Sri Lanka

Several subspecies of Elephas maximus have been identified, using morphometric data and molecular markers. Elephas maximus maximus (Sri Lankan Elephant) is found only on the island of Sri Lanka. It is the largest of the Asians. There are an estimated 3,000–4,500 members of this subspecies left today in the wild, although no accurate census has been carried out recently. Large males can weigh upward to 5,400 kg (12,000 lb) and stand over 3.4 m (11 ft) tall. Sri Lankan males have very large cranial bulges, and both sexes have more areas of depigmentation than other Asians. Typically, their ears, face, trunk, and belly have large concentrations of pink-speckled skin. There is an orphanage for elephants in Pinnawala, Sri Lanka, which plays a large role in protecting the Sri Lankan Elephant from extinction.

Elephas maximus indicus (Indian Elephant) makes up the bulk of the Asian elephant population. Numbering approximately 36,000, these elephants are lighter grey in colour, with depigmentation only on the ears and trunk. Large males will ordinarily weigh only about 5,000 kg (11,000 lb), but are as tall as the Sri Lankan. The mainland Asian can be found in 11 Asian countries, from India to Indonesia. They prefer forested areas and transitional zones, between forests and grasslands, where greater food variety is available.

The Sumatran Elephant, Elephas maximus sumatranus, found only on Sumatra, is smaller than the Indian Elephant. Population estimates for this group range from 2,100 to 3,000 individuals. It is very light grey in colour and has less depigmentation than the other Asians, with pink spots only on the ears. Mature Sumatrans will usually only measure 1.7–2.6 m (5.6–8.5 ft) at the shoulder and weigh less than 3,000 kg (6,600 lb). It is considerably smaller than its other Asian (and African) cousins and exists only on the island of Sumatra, usually in forested regions and partially wooded habitats.

In 2003, a further subspecies was identified on Borneo. Named the Borneo pygmy elephant, it is smaller and tamer than any other Asian elephants. It also has relatively larger ears, longer tail and straighter tusks.

Physical characteristics

Trunk

Trunk of African (left) and Asian (right) elephant.
Articulation of elephant trunk.
An elephant can use its trunk for a variety of purposes. This one is wiping its eye.
Eye of an Asian elephant.

The proboscis, or trunk, is a fusion of the nose and upper lip, elongated and specialized to become the elephant's most important and versatile appendage. African elephants are equipped with two fingerlike projections at the tip of their trunk, while Asians have only one. The elephant's trunk is sensitive enough to pick up a single blade of grass, yet strong enough to rip the branches off a tree.

Most herbivores (plant eaters, like the elephant) possess teeth adapted for cutting and tearing off plant materials. However, except for the very young or infirm, elephants always use their trunks to tear up their food and then place it in their mouth. They will graze on grass or reach up into trees to grasp leaves, fruit, or entire branches. If the desired food item is too high up, the elephant will wrap its trunk around the tree or branch and shake its food loose or sometimes simply knock the tree down altogether.

The trunk is also used for drinking. Elephants suck water up into the trunk—up to 14 litres (15 quarts) at a time—and then blow it into their mouth. Elephants also suck up water to spray on their body during bathing. On top of this watery coating, the animal will then spray dirt and mud, which dries off and acts as a protective sunscreen. When swimming, the trunk makes an excellent snorkel.[30][31]

This appendage also plays a key role in many social interactions. Familiar elephants will greet each other by entwining their trunks, much like a handshake. They also use them while play-wrestling, caressing during courtship and mother-child interactions, and for dominance displays—a raised trunk can be a warning or threat, while a lowered trunk can be a sign of submission. Elephants can defend themselves very well by flailing their trunk at unwanted intruders or by grasping and flinging them.

An elephant also relies on its trunk for its highly developed sense of smell. By raising the trunk up in the air and swiveling it from side to side, like a periscope, it can determine the location of friends, enemies, and food sources.[citation needed]

Tusks

Tusks of African and Asian elephants.

The tusks of an elephant are its second upper incisors. Tusks grow continuously; an adult male's tusks grow about 18 cm (7 in) a year. Tusks are used to dig for water, salt, and roots; to debark trees, to eat the bark; to dig into baobab trees to get at the pulp inside; and to move trees and branches when clearing a path. In addition, they are used for marking trees to establish territory and occasionally as weapons.

Like humans who are typically right- or left-handed, elephants are usually right- or left-tusked. The dominant tusk, called the master tusk, is generally shorter and more rounded at the tip from wear. Both male and female African elephants have large tusks that can reach over 3 m (10 ft) in length and weigh over 90 kg (200 lb). In the Asian species, only the males have large tusks. Female Asians have tusks which are very small or absent altogether. Asian males can have tusks as long as the much larger Africans, but they are usually much slimmer and lighter; the heaviest recorded is 39 kg (86 lb). The tusk of both species is mostly made of calcium phosphate in the form of apatite. As a piece of living tissue, it is relatively soft (compared with other minerals such as rock), and the tusk, also known as ivory, is strongly favoured by artists for its carvability. The desire for elephant ivory has been one of the major factors in the reduction of the world's elephant population.

Some extinct relatives of elephants had tusks in their lower jaws in addition to their upper jaws, such as Gomphotherium, or only in their lower jaws, such as Deinotherium.[32]

Teeth

Elephants' teeth are very different from those of most other mammals. Over their lives they usually have 28 teeth. These are:

Replica of an Asian Elephant's molar, showing upper side.

This gives elephants a dental formula of: Upper: 1.0.3.3, lower: 0.0.3.3

Unlike most mammals, which grow baby teeth and then replace them with a permanent set of adult teeth, elephants have cycles of tooth rotation throughout their entire life. The tusks have milk precursors, which fall out quickly and the adult tusks are in place by one year of age, but the molars are replaced five times in an average elephant's lifetime.[33] The teeth do not emerge from the jaws vertically like with human teeth. Instead, they move horizontally, like a conveyor belt. New teeth grow in at the back of the mouth, pushing older teeth toward the front, where they wear down with use and the remains fall out. When an elephant becomes very old, the last set of teeth is worn to stumps, and it must rely on softer foods to chew. Very elderly elephants often spend their last years exclusively in marshy areas where they can feed on soft wet grasses. Eventually, when the last teeth fall out, the elephant will be unable to eat and will die of starvation. Were it not for their teeth wearing out, their metabolism would allow them to live for much longer. However, as more habitat is destroyed, the elephants' living space becomes smaller and smaller; the elderly no longer have the opportunity to roam in search of more appropriate food and will, consequently, die of starvation at an earlier age.

Tusks in the lower jaw are also second incisors. These grew out large in Deinotherium and some mastodons, but in modern elephants they disappear early without erupting.

Skin

Skin of an African (left) and Asian (right) elephant.
Elephant bathing-001.ogv
African elephant bathing

Elephants are colloquially called pachyderms (from their original scientific classification), which means thick-skinned animals. An elephant's skin is extremely tough around most parts of its body and measures about 2.5 centimetres (1.0 in) thick. However, the skin around the mouth and inside of the ear is paper-thin. Normally, the skin of an Asian is covered with more hair than its African counterpart. This is most noticeable in the young. Asian calves are usually covered with a thick coat of brownish red fuzz. As they get older, this hair darkens and becomes more sparse, but it will always remain on their heads and tails.

The species of elephants are typically greyish in colour, but the Africans very often appear brown or reddish from wallowing in mud holes of coloured soil. Wallowing is an important behaviour in elephant society. Not only is it important for socialization, but the mud acts as a sunscreen, protecting their skin from harsh ultraviolet radiation. Although tough, an elephant's skin is very sensitive. Without regular mud baths to protect it from burning, as well as from insect bites and moisture loss, an elephant's skin would suffer serious damage. After bathing, the elephant will usually use its trunk to blow dirt on its body to help dry and bake on its new protective coat. As elephants are limited to smaller and smaller areas, there is less water available, and local herds will often come too close over the right to use these limited resources.

Wallowing also aids the skin in regulating body temperatures. Elephants have difficulty in releasing heat through the skin because, in proportion to their body size, they have very little of it. The ratio of an elephant's mass to the surface area of its skin is many times that of a human. Elephants have even been observed lifting up their legs to expose the soles of their feet, presumably in an effort to expose more skin to the air. Since wild elephants live in very hot climates, they must have other means of getting rid of excess heat.

Legs and feet

Elephant using its feet to crush a watermelon prior to eating it.

An elephant's legs are great straight pillars, as they must be to support its bulk. The elephant needs less muscular power to stand because of its straight legs and large pad-like feet. For this reason an elephant can stand for very long periods of time without tiring. In fact, African elephants rarely lie down unless they are sick or wounded. Indian elephants, in contrast, lie down frequently.

The feet of an elephant are nearly round. African elephants have three nails on each hind foot, and four on each front foot. Indian elephants have four nails on each hind foot and five on each front foot. Beneath the bones of the foot is a tough, gelatinous material that acts as a cushion or shock absorber. Under the elephant's weight the foot swells, but it gets smaller when the weight is removed. An elephant can sink deep into mud, but can pull its legs out readily because its feet become smaller when they are lifted.[citation needed]

Elephants swim well, but cannot trot, jump, or gallop. They do have two gaits: a walk; and a faster gait that is similar to running.

In walking, the legs act as pendulums, with the hips and shoulders rising and falling while the foot is planted on the ground. With no "aerial phase", the faster gait does not meet all the criteria of running, as elephants always have at least one foot on the ground. However, an elephant moving fast uses its legs much like a running animal, with the hips and shoulders falling and then rising while the feet are on the ground. In this gait, an elephant will have three feet off the ground at one time. As both of the hind feet and both of the front feet are off the ground at the same time, this gait has been likened to the hind legs and the front legs taking turns running.[34] Tests at the Thai Elephant Conservation Centre are reported to show that fast-moving elephants 'run' with their front legs, but 'walk' with their hind legs.[35]

Although they start this "run" at only 8 km/h,[36] elephants have been reported to reach speeds up to 40 km/h (25 mph),[37] all the while using the same gait. In tests at the Thai Elephant Conservation Centre the fastest elephants reached a top speed of 18 km/h (11 mph).[35] At this speed, most other four-legged creatures are well into a gallop, even accounting for leg length. Spring-like kinetics could explain the difference between the motion of elephants and other animals.[38]

Ears

Difference between Asian (left) and African (right) elephant ears.

The large flapping ears of an elephant are also very important for temperature regulation. Elephant ears are made of a very thin layer of skin stretched over cartilage and a rich network of blood vessels. On hot days, elephants will flap their ears constantly, creating a slight breeze. This breeze cools the surface blood vessels, and then the cooler blood gets circulated to the rest of the animal's body. The hot blood entering the ears can be cooled as much as ten degrees Fahrenheit before returning to the body. Differences in the ear sizes of African and Asian elephants can be explained, in part, by their geographical distribution. Africans originated and stayed near the equator, where it is warmer. Therefore, they have bigger ears. Asians live farther north, in slightly cooler climates, and thus have smaller ears.

The ears are also used in certain displays of aggression and during the males' mating period. If an elephant wants to intimidate a predator or rival, it will spread its ears out wide to make itself look more massive and imposing. During the breeding season, males give off an odour from the musth gland located behind their eyes. Joyce Poole, a well-known elephant researcher, has theorized that the males will fan their ears in an effort to help propel this "elephant cologne" great distances.[39]

Biology and behavior

The skeleton of a dwarf elephant from the island of Crete. Dwarf elephants were present on some Mediterranean islands until about 10,000 years ago.

Evolution

The earliest known ancestors of modern-day elephants evolved about 60 million years ago. The ancestor of the elephants from 37 million years ago was aquatic and had a similar lifestyle to a hippopotamus.[40]

Social behavior

Elephants live in a structured social order. The social lives of male and female elephants are very different. The females spend their entire lives in tightly knit family groups made up of mothers, daughters, sisters, and aunts. These groups are led by the eldest female, or matriarch. Adult males, on the other hand, live mostly solitary lives.

The social circle of the female elephant does not end with the small family unit. In addition to encountering the local males that live on the fringes of one or more groups, the female's life also involves interaction with other families, clans, and subpopulations. Most immediate family groups range from five to fifteen adults, as well as a number of immature males and females. When a group gets too big, a few of the elder daughters will break off and form their own small group. They remain very aware of which local herds are relatives and which are not.

Elephant footprints (tire tracks for scale).

The life of the adult male is very different. As he gets older, he begins to spend more time at the edge of the herd, gradually going off on his own for hours or days at a time. Eventually, days become weeks, and somewhere around the age of fourteen, the mature male, or bull, sets out from his natal group for good. While males do live primarily solitary lives, they will occasionally form loose associations with other males. These groups are called bachelor herds. The males spend much more time than the females fighting for dominance with each other. Only the most dominant males will be permitted to breed with cycling females. The less dominant ones must wait their turn. It is usually the older bulls, forty to fifty years old, that do most of the breeding.

The dominance battles between males can look very fierce, but typically they inflict very little injury. Most of the bouts are in the form of aggressive displays and bluffs. Ordinarily, the smaller, younger, and less confident animal will back off before any real damage can be done. However, during the breeding season, the battles can get extremely aggressive, and the occasional elephant is injured. During this season, known as musth, a bull will fight with almost any other male it encounters, and it will spend most of its time hovering around the female herds, trying to find a receptive mate.

Mating behaviour

Elephant mating behaviour.

The mating season is short and females are only able to conceive for a few days each year. She will detach herself from the herd. The scent of the female (cow) elephant in heat (or estrus) attracts the male and she also uses audible signals to attract the male. As the female can usually outrun the male, she does not have to mate with every male that approaches her.

The male initiates the courtship and the female ignores him for several minutes. He then stops and starts again. Elephants display a range of affectionate interactions, such as nuzzling, trunk intertwining, and placing their trunks in each other's mouths.

In a rarely observed display of his affection, he may drape his trunk outside of his tusks during the ritual (image 1). The interactions may last for 20–30 minutes and do not necessarily result in the male mounting the female, though he may demonstrate arousal during the ritual (image 5).

The female elephant is not passive in the ritual and uses the same techniques as the male.

African as well as Asiatic males will engage in same-sex bonding and mounting. The encounters are analogous to heterosexual bouts, one male often extending his trunk along the other's back and pushing forward with his tusks to signify his intention to mount. Unlike heterosexual relations, which are always of a fleeting nature, those between males result in a "companionship", consisting of an older individual and one or two younger, attendant males. Same-sex relations are common and frequent in both sexes, with Asiatic elephants in captivity devoting roughly 46% of sexual encounters to same-sex activity.[41]

Rogue elephant is a term for a lone, violently aggressive wild elephant. It is a calque of the Sinhala term hora aliya. Its introduction to English has been attributed by the Oxford English Dictionary to Sir James Emerson Tennent, but this usage may have been pre-dated by William Sirr.

Intelligence

Human, dolphin and elephant brains up to scale. (1)-cerebrum (1a)-temporal lobe and (2)-cerebellum.

With a mass just over 5 kg (11 lb), elephant brains are larger than those of any other land animal. A wide variety of behaviours associated with intelligence have been attributed to elephants, including those associated with grief, making music, art, altruism, allomothering, play, use of tools,[42] compassion and self-awareness[43]. Elephants may be on a par with other intelligent species, such as cetaceans[7] and non-human primates.[8] The largest areas in the elephant brain are those responsible for hearing, smell and movement coordination.

Senses

Elephants have well innervated trunks, and an exceptional sense of hearing and smell. The hearing receptors reside not only in ears, but also in trunks that are sensitive to vibrations, and most significantly feet, which have special receptors for low frequency sound and are exceptionally well innervated. Elephants communicate by sound over large distances of several kilometers partly through the ground, which is important for their social lives. Elephants are observed listening by putting trunks on the ground and carefully positioning their feet.

The eyesight of elephants is relatively poor.

Self-awareness

Mirror self recognition is a test of self awareness and cognition used in animal studies. A mirror was provided and visible marks were made on the elephant. The elephants investigated these marks, which were visible only via the mirror. The tests also included non-visible marks to rule out the possibility of their using other senses to detect these marks. This shows that elephants recognize the fact that the image in the mirror is their own self and such abilities are considered the basis for empathy, altruism and higher social interactions. This ability has also been demonstrated in humans, apes, Bottlenose dolphins,[44] and magpies.[45]

A young elephant in Zimbabwe.

Communication

Elephants make a number of sounds when communicating. Elephant are famous for their trumpet calls which are made when the animal blows though its nostrils. Trumpeting is usually made during excitement. Its use varies from startlement to a cry of help to rage. Elephants also make rumbling growls when greeting each other. The growl becomes a bellow when the mouth is open and a bellow becomes a moan when prolonged. This can escalate with a roar when threatening another elephant or another animal.

Elephants can communicate over long distances by producing and receiving low-frequency sound (infrasound), a sub-sonic rumbling, which can travel in the air and through the ground much farther than higher frequencies. These calls range in frequency from 15–35 Hz and can be as loud as 117 dB, allowing communication for many kilometres, with a possible maximum range of around 10 km.[46] This sound can be felt by the sensitive skin of an elephant's feet and trunk, which pick up the resonant vibrations much as the flat skin on the head of a drum. To listen attentively, every member of the herd will lift one foreleg from the ground, and face the source of the sound, or often lay its trunk on the ground. The lifting presumably increases the ground contact and sensitivity of the remaining legs. This ability is thought also to aid their navigation by use of external sources of infrasound. Discovery of this new aspect of elephant social communication and perception came with breakthroughs in audio technology, which can pick up frequencies outside the range of the human ear. Pioneering research in elephant infrasound communication was done by Katy Payne, of the Elephant Listening Project,[47] and is detailed in her book Silent Thunder. Though this research is still in its infancy, it is helping to solve many mysteries, such as how elephants can find distant potential mates, and how social groups are able to coordinate their movements over extensive range.[46]

Diet

Elephants are herbivores, and spend up to 16 hours a day eating plants. Their diet is highly variable, both seasonally and across habitats and regions. Elephants are primarily browsers, feeding on the leaves, bark, and fruits of trees and shrubs, but they may also eat consderable grasses and herbs. As is true for other non-ruminant unglulates, elephants only digest approximately 40% of what they eat.[citation needed]. They make up for their digestive system's lack of efficiency in volume. An adult elephant consumes 140–270 kg (300–600 lb) of food a day.

Reproduction and life cycle

Elephant calves

Female elephant social life revolves around breeding and raising of the calves. A female will usually be ready to breed around the age of thirteen, when she comes into estrus, a short phase of receptiveness lasting a couple of days, for the first time. Females announce their estrus with smell signals and special calls.

Female African elephant with calf, in Kenya.

Females prefer bigger, stronger, and, most importantly, older males. Such a reproductive strategy tends to increase their offspring's chances of survival.

After a twenty-two-month pregnancy, the mother gives birth to a calf that weighs about 115 kg (250 lb) and stand over 75 cm (2.5 ft) tall. Elephants have a very long development. As is common with more intelligent species, they are born with fewer survival instincts than many other animals. Instead, they rely on their elders to teach them what they need to know. Today, however, the pressures humans have put on the wild elephant populations, from poaching to habitat destruction, mean that the elderly often die at a younger age, leaving fewer teachers for the young. The consequences of this for the next generation are not known.

A new calf is usually the centre of attention for herd members. Adults and most of the other young will gather around the newborn, touching and caressing it with their trunks. The baby is born nearly blind and at first relies almost completely on its trunk to discover the world around it.

Elephants within a herd are usually related, and all members of the tightly knit female group participate in the care and protection of the young. After the initial excitement, the mother will usually select several full-time baby-sitters, or "allomothers", from her group. An elephant is considered an allomother when she is not able to have her own baby. The more allomothers, the better the calf's chances of survival. A benefit of being an allomother is that she can gain experience or receive assistance when caring for her own calf. According to Cynthia Moss, a well known researcher, these allomothers will help in all aspects of raising the calf.[48] They walk with the young as the herd travels, helping the calves along if they fall or get stuck in the mud. The more allomothers a baby has, the more free time its mother has to feed herself. Providing a calf with nutritious milk means the mother has to eat more nutritious food herself.

Effect on the environment

Elephants can have profound impacts on the ecosystems they occupy, and both positive and negative effects on other species. Dung beetles and termites both eat elephant feces. During the dry season, elephants use their tusks to dig into river beds to reach underground sources of water. These holes may then become essential sources of water for other species. Elephants make paths through their environment that are used by other animals. Some of these pathways have apparently been used by several generations of elephants, used by humans and eventually even been converted to roads.

Elephants' foraging activities can sometimes greatly affect the areas in which they live. By pulling down trees to eat leaves, breaking branches, and pulling out roots, they reduce woody cover, creating clearings in forests, converting forests to savannas, and converting savannas to grasslands. These changes tend to benefit grazers at the expense of browsers.

Threat of extinction

Men with African Elephant tusks, Dar es Salaam, c. 1900

Hunting

The threat to the African elephant presented by the ivory trade is unique to the species. Larger, long-lived, slow-breeding animals, like the elephant, are more susceptible to overhunting than other animals. They cannot hide, and it takes many years for an elephant to grow and reproduce. An elephant needs an average of 140 kg (300 lb) of vegetation a day to survive. As large predators are hunted, the local small grazer populations (the elephant's food competitors) find themselves on the rise. The increased number of herbivores ravage the local trees, shrubs, and grasses. Elephants themselves have few natural predators besides man and, occasionally, lions. However, many African governments legally allow limited hunting. The large amount of money that is charged for the necessary permits is often used to support conservation efforts, and the small number of permits issued (usually for older animals) ensure that populations are not depleted.[2]

At the turn of the 20th century, it is estimated that elephants numbered between 5–10 million, but hunting and habitat destruction had reduced their numbers to 400,000 to 500,000 by the end of the century.[49] While elephant populations are increasing in parts of southern and eastern Africa[50], other African nations report a decrease of their elephant populations by as much as two-thirds, and populations in even some protected areas are in danger of being eliminated[51] Chad has a decades-old history of poaching of elephants, which has caused the elephant population of the region, which exceeded 300,000 in 1970, to drop to approximately 10,000 today.[52] In Virunga National Park, in eastern Democratic Republic of Congo, the number of elephants living in the observable area of the park fell even more dramatically: from 2,889 in 1951 to 348 in 2006.[53]

Habitat loss

Another threat to elephant's survival in general is the ongoing cultivation of their habitats with increasing risk of conflicts of interest with human cohabitants. These conflicts kill 150 elephants and up to 100 people per year in Sri Lanka.[54] Lacking the massive tusks of its African cousins, the Asian elephant's demise can be attributed mostly to loss of its habitat.

As larger patches of forest disappear, the ecosystem is affected in profound ways. The trees are responsible for anchoring soil and absorbing water runoff. Floods and massive erosion are common results of deforestation. Elephants need massive tracts of land because, much like the slash-and-burn farmers, they are used to crashing through the forest, tearing down trees and shrubs for food and then cycling back later on, when the area has regrown. As forests are reduced to small pockets, elephants become part of the problem, quickly destroying all the vegetation in an area, eliminating all their resources.

National parks

Africa's first official reserve, Kruger National Park, eventually became one of the world's most famous and successful national parks.[55] There are, however, many problems associated with the establishment of these reserves. For example, elephants range through a wide tract of land with little regard for national borders. Once a reserve is established and fence erected, many animals find themselves cut off from their winter feeding grounds or spring breeding areas. Some animals may die as a result, while others, like the elephants, may just trample over the fences, wreaking havoc in nearby fields. When confined to small territories, elephants can inflict an enormous amount of damage to the local landscapes.[56]

Additionally, some reserves, such as Kruger National Park has, in the opinion of wildlife managers, suffered from elephant overcrowding, at the expense of other species of wildlife within the reserve. On 25 February 2008, the South Africa announced that they would reintroduce culling for the first time since 1994 to control elephant numbers.[57] Nevertheless, as scientists learn more about nature and the environment, it becomes very clear that these parks may be the elephant's last hope against the rapidly changing world around them.

Humanity and elephants

Elephant pillar carvings at Kailash Temple, India

Hunting

Indian(?) elephant, from a Lombardy manuscript, circa 1400.

Elephant hunting, both legal and illegal, has had some unexpected consequences on elephant anatomy as well. African ivory hunters, by killing only tusked elephants, have given a much larger chance of mating to elephants with small tusks or no tusks at all. The propagation of the absent-tusk gene has resulted in the birth of large numbers of tuskless elephants, now approaching 30% in some populations (compare with a rate of about 1% in 1930). Tusklessness, once a very rare genetic abnormality, has become a widespread hereditary trait.

It is possible, if unlikely, that continued selection pressure could bring about a complete absence of tusks in African elephants. The effect of tuskless elephants on the environment, and on the elephants themselves, could be dramatic. Elephants use their tusks to root around in the ground for necessary minerals, tear apart vegetation, and spar with one another for mating rights. Without tusks, elephant behaviour could change dramatically.[58]

Domestication and use

Elephants are used to entertain tourists at some beaches as at Havelock Island, India.

Elephants have been working animals used in various capacities by humans. Seals found in the Indus Valley suggest that the elephant was first domesticated in ancient India. However, elephants have never been truly domesticated: the male elephant in his periodic condition of musth is dangerous and difficult to control. Therefore elephants used by humans have typically been female, war elephants being an exception, however: as female elephants in battle will run from a male, only males could be used in war. It is generally more economical to capture wild young elephants and tame them than breeding them in captivity (see also elephant "crushing").

The Judean rebel Eleazar Maccabeus kills a Seleucid war elephant and is crushed under it (Miniature from a manuscript Speculum Humanae Salvationis).

The Laotians have been domesticating elephant for centuries, and an approximate 500 domesticated elephants are still employed, the majority of which work in the Xaignabouli province. These elephants are mainly employed in the logging industry, with ecotourism emerging as a sustainable and environmentally friendly alternative. Elefantasia is a local INGO aiming to reconvert logging elephants into ecotourism practices, thus allowing Asian elephants the ability to supply their mahouts with income whilst still allowed to breed.

Elephants are also commonly exhibited in zoos and wild animal parks. 1200 Elephants are kept in western zoos. A study shows that the lifespan of elephants in European zoos is about half as long as those living in protected areas in Africa and Asia.[59]

Elephants are revered in India (and are worshipped in ceremonies such as the Aanayoottu).

Warfare

War elephants were used by armies in the Indian sub-continent, the Warring States of China, and later by the Persian Empire. This use was adopted by Hellenistic armies after Alexander the Great experienced their worth against King Porus, notably in the Ptolemaic and Seleucid diadoch empires. The Carthaginian general Hannibal took elephants across the Alps when he was fighting the Romans, but brought too few elephants to be of much military use, although his horse cavalry was quite successful; he probably used a now-extinct third African (sub)species, the North African (Forest) elephant, smaller than its two southern cousins, and presumably easier to domesticate. A large elephant in full charge could cause tremendous damage to infantry, and cavalry horses would be afraid of them (see Battle of Hydaspes).

Industry

Elephant work camp in Thailand. Elephants are used for heavy forest work and in circus presentations.

Throughout Myanmar (Burma), Siam, India, and most of South Asia elephants were used in the military for heavy labour, especially for uprooting trees and moving logs, and were also commonly used as executioners to crush the condemned underfoot.

Elephants have also been used as mounts for safari-type hunting, especially Indian shikar (mainly on tigers), and as ceremonial mounts for royal and religious occasions, whilst Asian elephants have been used for transport and entertainment.

Zoo and circuses

There is growing resistance[60] against the capture, confinement, and use of wild elephants. Animal rights advocates allege that elephants in zoos and circuses "suffer a life of chronic physical ailments, social deprivation, emotional starvation, and premature death".[61] Zoos argue that standards for treatment of elephants are extremely high and that minimum requirements for such things as minimum space requirements, enclosure design, nutrition, reproduction, enrichment and veterinary care are set to ensure the well being of elephants in captivity. Circuses continue to have a mixed record. Recently, the city of Los Angeles' closed an elephant act with Circus Vazquez due to numerous instances of abuse and neglect (April 2008) [62], and, according to PETA, 27 elephants owned by Ringling Bros. and Barnum & Bailey Circus have died since 1992.[63]

Elephants have traditionally been a major part of circuses around the world, being intelligent enough to be trained in a variety of acts (see for example P.T. Barnum's Jumbo and John L. Sullivan, the famous "Boxing Elephant"). However, conditions for circus elephants are unnatural (confinement in small pens or cages, restraints on their feet, lack of companionship of other elephants). Perhaps as a result, there are occasional instances of them turning on their keepers or handlers (examples include Black Diamond and "Murderous Mary").

Elephants raised in captivity sometimes show "rocking behavior", a rhythmic and repetitive swaying which is unreported in free ranging wild elephants. Thought to be symptomatic of stress disorders, and probably made worse by a barren environment,[64] rocking behavior may be a precursor to aggressive behavior in captive elephants.[65][66] This link is to an image of Devi (little princess), a 30-year-old Asian Elephant raised in captivity at the San Diego Zoo showing "rocking behavior".

Hybrids

Although successful hybridisation between African and Asian Elephant species is highly unlikely in the wild, in 1978 at Chester Zoo, an Asian elephant cow gave birth to a hybrid calf sired by an African elephant bull (the old terms are used here as these events pre-date the current classifications). "Motty", the resulting hybrid male calf, had an African elephant's cheeks, their ears (large with pointed lobes) and legs (longer and slimmer), but the toenail numbers, (5 for each front foot, 4 hind) and the single trunk finger of an Asian elephant. His wrinkled trunk was like that of an African elephant. His forehead was sloping with one dome and two smaller domes behind it. The body was African in type, but had an Asian-type centre hump and an African-type rear hump. The calf died of infection 12 days later[67]. It is preserved as a mounted specimen at the British Natural History Museum, London. There are unconfirmed rumours of three other hybrid elephants born in zoos or circuses; all are said to have been deformed and none survived.

Elephant rage

Devi (little princess), a 30-year-old Asian Elephant raised in captivity at the San Diego Zoo exhibiting "rocking behavior" (animation), a rhythmic and repetitive swaying which is unreported in free ranging wild elephants. Thought to be symptomatic of stress disorders, and probably made worse by a barren environment,[64] rocking behavior may be a precursor to aggressive behavior in captive elephants.

Despite its popularity in zoos, and cuddly portrayal as gentle giants in fiction, elephants are among the world's most dangerous animals. They can crush and kill any other land animal, even the rhinoceros. They can experience bouts of rage, and can be apparently vindictive.[68] In Africa, groups of young teenage elephants attack human villages after cullings done in the 1970s and 80s.[69][70] In India, male elephants attack villages at night, destroying homes and killing people regularly. In the Indian state of Jharkhand, 300 people were killed by elephants between 2000 and 2004, and in Assam, 239 people have been killed by elephants since 2001.[68]

Musth

Adult male elephants naturally periodically enter the state called musth (Hindi for "madness"), sometimes spelt "must" in English.

Other causes

At least a few elephants have been suspected by local people to be drunk during their attacks, although this has been doubted by authorities. In December 1998, a herd of elephants overran a village in India. Although locals reported that nearby elephants had recently been observed drinking beer which rendered them "unpredictable", officials considered it the least likely explanation for the attack.[71] An attack on another Indian village occurred in October 1999, and again locals believed the reason was drunkenness, but the theory was not widely accepted.[72] Purportedly drunk elephants raided yet another Indian village again on December 2002, killing six people, which led to killing of about 200 elephants by locals.[73]

Etymology

Olifant and its variations (ex. oliphant, olyphant) are archaic spellings of elephant. Aside from elephants, the word has been used to refer to ivory, elephant tusks, musical horns made of elephant tusks, or a musical instrument resembling such horns.

It appears in Middle English as olifant or olifaunt, and was borrowed from Medieval French olifanz. In Dutch olifant means elephant. The French word owes something to both Old High German olbenta "camel", and to Latin elephantus "elephant", a word of Greek origin. OHG olbenta is a word of old Germanic origin; cf. Gothic ulbandus also meaning "camel". But the form of the OHG and Gothic words suggests it is also a borrowing, perhaps indeed directly or indirectly from Greek elephas (ελεφας) literally "ivory", though apparently with some confusion as to the animal the word referred to.

In popular culture

Depiction of a crocodile stretching the nose of a young elephant in Rudyard Kipling's "Elephant's Child" from Just So Stories.

Elephants are ubiquitous in Western popular culture as emblems of the exotic[74] because their unique appearance and size sets them apart from other animals and because, like other African animals such as the giraffe, rhinoceros, and hippopotamus, they are unfamiliar to Western audiences.[75] Popular culture's stock references to elephants rely on this exotic uniqueness.[75] For instance, a "white elephant" is a byword for something expensive, useless and bizarre.[75]

As characters, elephants are relegated largely to children's literature,[74] in which they are generally cast as models of exemplary behaviour,[74] but account for some of this branch of literature's most iconic characters.[74] Many stories tell of isolated young elephants returning to a close-knit community, such as The Elephant’s Child from Rudyard Kipling's Just So Stories (1902), Dumbo (1942) or The Saggy Baggy Elephant (1947).[75] Other elephant heroes given human qualities include Laurent de Brunhoff's anthropomorphic Babar (1935), David McKee's Elmer (1989) and Dr. Seuss's Horton (1940).[75] More than other exotic animals, elephants in fiction are surrogates for humans,[75] with their concern for the community and each other depicted as something to aspire to.[76]

See also

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Further reading

External links


Quotes

Up to date as of January 14, 2010
(Redirected to Elephants article)

From Wikiquote

Our lord the Elephant,
Chief of the ways of God

The elephant is the largest living land animal.

Contents

Sourced

  • 群盲評象
    • 涅槃経 (Nirvana Sutra)
    • Translation: A crowd of blind people evaluate an elephant.
    • A metaphor of unenlighted people and their relation to the right knowledge.
  • Nature's great masterpiece, an elephant,
    The only harmless great thing.
  • The torn boughs trailing o'er the tusks aslant,
    The saplings reeling in the path he trod,
    Declare his might — our lord the Elephant,
    Chief of the ways of God.
  • In the High and Far-Off Times the Elephant, O Best Beloved, had no trunk. He had only a blackish, bulgy nose, as big as a boot, that he could wriggle about from side to side; but he couldn't pick up things with it. But there was one Elephant — a new Elephant — an Elephant's Child — who was full of 'satiable curtiosity, and that means he asked ever so many questions.
  • His services are like so many white elephants, of which nobody can make use, and yet that drain one's gratitude, if indeed one does not feel bankrupt.
    • G. E. Jewbury Letters 1892; this is the earliest known occurrence of "white elephant" in English, though references to Indian and Thai veneration of white elephants go back to at least the early 17th century. [1]
  • Women and elephants never forget an injury.
    • Saki, Reginald on Besetting Sins
    • Usually quoted as Elephants never forget; this is the original according to Dictionary of Proverbs and their Origin, L & R Flavell, Kyle Cathie Ltd. 1994; ISBN 1 85626 141 7, p.88
  • Not every ant which stays under the elephant's foot dies; the most powerful cannot always kill the weakest!
  • Early one morning the sub-inspector at a police station the other end of the town rang me up on the phone and said that an elephant was ravaging the bazaar. Would I please come and do something about it?
  • Not that I think much depends
    On how we treat our feathered friends,
    Or hold the wrinkled elephant
    A nobler creature than my aunt.
    It's simply that I'm sure I can
    Get on without my fellow man.

I saw a peanut stand, heard a rubber band,

I saw a needle that winked its eye.
But I think I will have seen everything

When I see an elephant fly.

I saw a front porch swing, heard a diamond ring,
I saw a polka-dot railroad tie.
But I think I will have seen everything

when I see an elephant fly.

I seen a clothes horse, he r'ar up and buck
And they tell me that a man made a vegetable truck
I didn't see that, I only heard

But just to be sociable I'll take your word

I heard a fireside chat, I saw a baseball bat
And I just laughed till I thought I'd die
But I'd be done see'n about everything

when I see an elephant fly.

  • Elephant-ear-witnesses-to-be of hymns
    and glorias, these ministrants all gray or
    gray with white on legs or trunk, are a pilgrims'

    pattern of revery not reverence — a
    religious procession without any priests,
    the centuries-old carefullest unrehearsed
    play.

  • An elephant can trumpet and shake the earth but not the self-possession of the ants who hold it.

Song: The Elephant by Michael Flanders

  • A elephant's life is tedious, laborious and slow;
    I've been an elephant all me life so I blooming well ought to know.
  • I'm an Introverted, Elephocentric, Hypochondriac,
    And I'll stick in the Elephant's nursing home
    Till I get me memory back!
  • I suffer from Schizophrenia
    It comes on me in spells
    Sometimes I'm King of Armenia
    At others I'm Orson Welles.
    I tell them I'm Napoleon
    and all that sort of bunk
    They never guess that all the time
    I'm laughing up me trunk!

other quotes

  • Keep five yards from a carriage, ten yards from a horse, and a hundred yards from an elephant; but the distance one should keep from a wicked man cannot be measured _Indian Proverb quotes
  • Though your enemy is the size of an ant, regard him as an elephant. _Danish Proverb quotes
  • When an elephant is in trouble, even a frog will kick him. _Hindu Proverb quotes
  • It is easier to restrain wild donkeys (Democrats) than to raise a dead elephant (Republicans)_Arthur Hoff
  • When you have got an elephant by the hind legs and he is trying to run away, it's best to let him run_Abraham Lincoln
  • Women and elephants never forget an injury_H. H. Munro quotes

Unsourced/Anonymous

  • Whatever you do, don't think of the elephant!

External links

Wikipedia
Wikipedia has an article about:

music and lyrics, retrieved February 24, 2008


1911 encyclopedia

Up to date as of January 14, 2010

From LoveToKnow 1911

ELEPHANT, the designation of the two existing representatives of the Proboscidea, a sub-order of ungulate mammals, and also extended to include their more immediate extinct relatives. As the distinctive characteristics of the sub-order, and also of the single existing genus Elephas, are given in the article Proboscidea, it will suffice to point out how the two existing species are distinguished from one another.

The more specialized of the two species is the Indian or Asiatic elephant, Elephas maximus, specially characterized by the extreme complexity of the structure of its molar teeth, which are composed of a great number of tall and thin plates of enamel and dentine, with the intervals filled by cement (see Proboscidea, fig. r). The average number of plates of the six successive molar teeth may be expressed by the "ridge-formula" 4, 8, 12, 12, 16, 24. The plates are compressed from before backwards, the anterior and posterior surfaces (as seen in the worn grinding face of the tooth) being nearly parallel. Ears of moderate size. Upper margin of the end of the proboscis developed into a distinct finger-like process, much longer than the lower margins, and the whole trunk uniformly tapering and smooth. Five nails on the fore-feet, and four (occasionally five) on the hind-feet.

The Asiatic elephant inhabits the forest-lands of India, Burma, the Malay Peninsula, Cochin China, Ceylon and Sumatra. Elephants from the last-named islands present some variations from those of the mainland, and have been separated under the names of E. zeylonicus and E. sumatranus, but they are not more than local races, and the Ceylon animal, which is generally tuskless, may be the typical E. maximus, in which case the Indian race will be E. maximus indicus. The appearance of the Asiatic elephant is familiar to all. In the wild state it is gregarious, associating in herds of ten, twenty or more individuals, and, though it may under certain circumstances become dangerous, it is generally inoffensive and even timid, fond of shade and solitude and the neighbourhood of water. The height of the male at the shoulder when full grown is usually from 8 to lc, ft., occasionally as much as II, and possibly even more. The female is somewhat smaller.

The following epitome of the habits of the Asiatic elephants is extracted from Great and Small Game of India and Tibet, by R. Lydekker: "The structure of the teeth is sufficient to indicate that the food consists chiefly of grass, leaves, succulent shoots and fruits; and this has been found by observation to be actually the case. In this respect the Asiatic species differs very widely from its African relative, whose nutriment is largely composed of boughs and roots. Another difference between the two animals is to be found in the great intolerance of the direct rays of the sun displayed by the Asiatic species, which never voluntarily exposes itself to their influence. Consequently, during the hot season in Upper India, and at all times except during the rains in the more southern districts, elephants keep much to the denser parts of the forests. In Southern India they delight in hill-forest, where the undergrowth is largely formed of bamboo, the tender shoots of which form a favourite delicacy; but during the rains they venture out to feed on the open grass tracts. Water is everywhere essential to their well-being; and no animals delight more thoroughly in a bath. Nor are they afraid to venture out of their depth, being excellent swimmers, and able, by means of their trunks, to breathe without difficulty when the entire body is submerged. The herds, which are led by females, appear in general to be family parties; and although commonly restricted to from thirty to fifty, may occasionally include as many as one hundred head. The old bulls are very generally solitary for a considerable portion of the year, but return to the herds during the pairing season. Some ` rogue ' elephants- gunda of the natives - remain, however, permanently separated from the rest of their kind. All such solitary bulls, as their colloquial name indicates, are of a spiteful disposition; and it appears that with the majority the inducement to live apart is due to their partiality for cultivated crops, into which the more timid females are afraid to venture. ` Must ' elephants are males in a condition of - probably sexual - excitement, when an abundant discharge of dark oily matter exudes from two pores in the forehead. In addition to various sounds produced at other times, an elephant when about to charge gives vent to a shrill loud ` trumpet'; and on such occasions rushes on its FIG. I. Asiatic Elephant (Elephas maximus). adversary with its trunk safely rolled up out of danger, endeavouring either to pin him to the ground with its tusks (if a male tusker) or to trample him to death beneath its ponderous knees or feet." Exact information in regard to the period of gestation of the female is still lacking, the length of the period being given from eighteen to twenty-two months by different authorities. The native idea, which may be true, is that the shorter period occurs in the case of female and the longer in that of male calves. In India elephants seldom breed in captivity, though they do so more frequently in Burma and Siam; the domesticated stock is therefore replenished by fresh captures. Occasionally two calves are produced at a birth, although the normal number is one. Calves suckle with their mouths and not with their trunks. Unlike the African species, the Indian elephant charges with its trunk curled up, and consequently in silence.

As regards their present distribution in India, elephants are found along the foot of the Himalaya as far west as the valley of Dehra-Dun, where the winter temperature falls to a comparatively low point. A favourite haunt used to be the swamp of Azufghur, lying among the sal-forests to the northward of Meerut. In the great tract of forest between the Ganges and Kistna rivers they occur locally as far west as Bilaspur and Mandla; they are met with in the Western Ghats as far north as between latitude 17 0 and 18°, and are likewise found in the hill FIG. 2. - Immature African Elephant (Elephas africanus). forests of Mysore, as well as still farther south. In this part of the peninsula they ascend the hills to a considerable height, as they do in the Newara Eliya district of Ceylon, where they have been encountered at an elevation of over 7000 ft. There is evidence that about three centuries ago elephants wandered in the forests of Malwa and Nimar, while they survived to a later date in the Chanda district of the Central Provinces. At the comparatively remote epoch when the Deccan was a forest tract, they were probably also met with there, but the swamps of the Bengal Sundarbans appear unsuited to their habits.

Of tusks, the three longest specimens on record respectively measure 8 ft. 9 in., 8 ft. 2 in. and 8 ft.; their respective weights being 81, 80 and 90 lb. These are, however, by no means the heaviest - one, whose length is 7 ft. 38 in., weighing 102 lb; while a second, of which the length is 7 ft. 34 in., scaled 971 lb. Of the largest pair in the possession of the British Museum, which belonged to an elephant killed in 1866 by Colonel G. M. Payne in Madras, one tusk measures 6 ft. 8 in. in length, and weighs 771lb, the other being somewhat smaller. It should be added that some of these large tusks came from Ceylon; such tuskers being believed to be descended from mainland animals imported into the island. "White" elephants are partial or complete albinos, and are far from uncommon in Burma and Siam. Young Indian elephants are hairy, thus showing affinity with the mammoth.

The African elephant is a very different animal from its Asiatic cousin, both as regards structure and habits; and were it not for the existence of intermediate extinct species, might well be regarded as the representative of a distinct genus. Among its characteristics the following points are noticeable. The molar teeth are of coarse construction, with fewer and larger plates and thicker enamel; the ridge-formula being 3, 6, 7, 8, io; while the plates are not flattened, but thicker in the middle than at the edges, so that their worn grinding-surfaces are lozengeshaped. Ears very large. The upper and lower margins of the end of the trunk form two nearly equal prehensile lips. Only three toes on the hind-foot. A very important distinction is to be found in the conformation of the trunk, which, as shown in fig. 2, looks as though composed of a number of segments, gradually decreasing in size from base to tip like the joints of a telescope, instead of tapering gradually and evenly from one extremity to the other. The females have relatively large tusks, which are essential in obtaining their food. Except where exterminated by human agency (and this has been accomplished to a deplorable extent), the African elephant is a native of the wooded districts of the whole of Africa south of the Sahara. It is hunted chiefly for the sake of the ivory of its immense tusks, of which it yields the principal source of supply to the European market, and the desire to obtain which is rapidly leading to the extermination of the species. In size the male African elephant often surpasses the Asiatic species, reaching nearly 12 ft. in some cases. The circumference of the fore-foot is half the height at the shoulder, a circumstance which enables sportsmen to estimate approximately the size of their quarry. A tusk in the British Museum measures io ft. 2 in. in length, with a basal girth of 24 in. and a weight of 2262 lb; but a still longer, although lighter, tusk was brought to London in 1905.

Several local races of African elephant have been described, mainly distinguished from one another by the form and size of the ears, shape of the head, &c. The most interesting of these is the pigmy Congo race, africanus pumilio, named on the evidence of an immature specimen in the possession of C. Hagenbeck, the well-known animal-dealer of Hamburg, in 1905. According to Hagenbeck's estimate, this elephant, which came from the French Congo, was about six years old at the time it came under scientific notice. Moreover, in the opinion of the same observer, it is in no wise an abnormally dwarfed or illgrown representative of the normal type of African elephant, but a well-developed adolescent animal. In height it stood about the same as a young individual of the ordinary African elephant when about a year and a half old, the vertical measurement at the shoulder being only 4 ft., or merely a foot higher than a new-born Indian elephant. Hagenbeck's estimate of its age was based on the presence of well-developed tusks, and the relative proportion of the fore and hind limbs, which are stated to show considerable differences in the case of the African elephant according to age. Nothing was stated as to the probability of an increase in the stature of the French Congo animal as it grows older; but even if we allow another foot, its height would be considerably less than half that of a large Central African bull of the ordinary elephant.

By Dr Paul Matschie several races of the African elephant have been described, mainly, as already mentioned, on certain differences in the shape of the ear. From the two West African races (E. a. cyclotis and a. oxyotis) the dwarf Congo elephant is stated to be distinguished by the shape of its ear; comparison in at least one instance having been made with an immature animal. The relatively small size of the ear is one of the most distinctive characteristics of the dwarf race. Further, the skin is stated to be much less rough, with fewer cracks, while a more important difference occurs in the trunk, which lacks the transverse ridges so distinctive of the ordinary African elephant, and thereby approximates to the Asiatic species.

If the differences in stature and form are constant, there can be no question as to the right of the dwarf Congo elephant to rank as a well-marked local race; the only point for consideration being whether it should not be called a species. The great interest in connexion with a dwarf West African race of elephant is in relation to the fossil pigmy elephants of the limestone fissures and caves of Malta and Cyprus. Although some of these elephants are believed not to have been larger than donkeys, the height of others may be estimated at from 4 to 5 ft., or practically the same as that of the dwarf Congo race. By their describers, the dwarf European elephants were regarded as distinct species, under the names of Elephas melitensis, E. mnaidriensis and E. cypriotes; but since their molar teeth are essentially miniatures of those of the African elephant, it has been suggested by later observers that these animals are nothing more than dwarf races of the latter. This view may receive some support from the occurrence of a dwarf form of the African elephant in the Congo; and if we regard the latter as a subspecies of Elephas africanus, it seems highly probable that a similar position will have to be assigned to the pigmy European fossil elephants. If, on the other hand, the dwarf Congo elephant be regarded as a species, then the Maltese and Cyprian elephants may have to be classed as races of Elephas pumilio; or, rather, E. pumilio will have to rank as a race of the Maltese species. In this connexion it is of interest to note that, both in the Mediterranean islands and in West Africa, dwarf elephants of the African type are accompanied by pigmy species of hippopotamus, although we have not yet evidence to show that in Africa the two animals occupy actually the same area. Still, the close relationship of the existing Liberian pigmy hippopotamus to the fossil Mediterranean species is significant, in relation to the foregoing observations on the elephant.

It may be added that fossil remains of the African elephant have been obtained from Spain, Sicily, Algeria and Egypt, in strata of the Pleistocene age. Some of the main differences in the habits of the African as distinct from those of the Asiatic elephant have been mentioned under the heading of the latter species. The most important of these are the greater tolerance by the African animal of sunlight, and the hard nature of its food, which consists chiefly of boughs and roots. The latter are dug up with the tusks; the left one being generally employed in this service, and thus becoming much more worn than its fellow. (R. L.*)


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Bible wiki

Up to date as of January 23, 2010

From BibleWiki

not found in Scripture except indirectly in the original Greek word (elephantinos) translated "of ivory" in Rev 18:12, and in the Hebrew word (shenhabim, meaning "elephant's tooth") rendered "ivory" in 1 Kg 10:22 and 2Chr 9:21.

This entry includes text from Easton's Bible Dictionary, 1897.

what mentions this? (please help by turning references to this page into wiki links)

This article needs to be merged with ELEPHANT (Jewish Encyclopedia).

Simple English

Elephant
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Superclass: Tetrapoda
Class: Mammalia
Subclass: Theria
Superorder: Afrotheria
Order: Proboscidea
Superfamily: Elephantoidea
Family: Elephantidae
Gray, 1821

Elephants are the largest living land mammals.[1] The largest elephant recorded was one shot in Angola, 1974. It weighed 27,060 pounds (13.5 tons) and stood 13 feet 8 inches tall.

At birth, an elephant calf may weigh 100 kg (225 pounds). The baby elephant develops for 20 to 22 months inside its mother. No other land animal takes this long to develop before being born.

Contents

Physical description

There are two living genera of elephants. These are African Loxodonta africanus, and Asian elephants Elephas maximus.

Trunk

An elephant's most obvious part is the trunk. The trunk is a very long nose, made from the upper lip. An elephant uses its trunk to grab objects such as food. Though the rest of an elephant's hide is strong and thick, its trunk is very soft and sensitive. Elephants avoid Acacia trees with symbiotic ants because they can bite the inside of an elephant's trunk.[2][3]

Teeth

Elephants also have tusks. Tusks are large teeth coming out of their upper jaws. A lot of ivory comes from elephant tusks. Ivory traders killed many elephants, so now hunting them is illegal. The trunk is also used when it trumpets. The elephant usually stands still, raise its trunk, and blow. This is a signal to other elephants and wildlife.

African elephants are larger and have bigger ears. They are browser/grazers: they eat leaves, branches and grass. These big ears have many veins, which carry blood throughout the body. Biologists think that the blood going through their ears helps African elephants to cool off. The weather is hotter in Africa than in Asia, so it is hard for elephants to stay cool. Female African elephants have tusks, but female Asian elephants do not. African elephants have a low place in their back. African elephants have two "fingers" at the end of their trunks, but Asian elephants only have one. Indian elephants eat mainly grass.

Grass is wears down teeth, and animals which eat grass have special teeth. Horses have teeth with long roots, which grow throughout life. Elephants have a different system. They use their teeth in sequence, not all at once. This means that, at any time, they only have one tooth in each jaw, that's a total of four.

In total, they have 24 teeth: 12 front teeth, called premolars, and 12 back teeth, called molars. When the last molar wears out, the elephant dies because it cannot eat. They can live for about 70 years. But in a zoo or circus, people can keep elephants alive by feeding them soft food.

Some African elephants live on the savanna while others live in the forest. Today, many people think these are different species. Scientists named the forest group Loxodonta cyclotis and the savanna group Loxodonta africanus.

Uses

Humans have used elephants for different things. The Carthaginian general Hannibal took some elephants across the Alps when he fought the Romans. He probably used the North African elephant, a kind of elephant that does not live today. It was smaller than other African elephants.

File:Bombay road
A Bombay man rides on an elephant.

People have used Indian elephants to move around and to have fun. Many circuses have them. Siamese, Indians, and other South Asians used them for several things. They fought in armies, and they crushed criminals. They also did heavy work like lifting trees and moving logs.

However, people have never domesticated elephants. Domesticated animals are tame and have babies under human control. The male elephant in heat is dangerous and hard to control. Most elephants used by people are female, except those used in war. In a battle, female elephants run from males, so armies needed males.

In the wild, elephants have strong family groups. Their ways of acting toward other elephants are hard for people to understand. They "talk" to each other with very low sounds. Most elephants sounds are so low, people cannot hear them. But elephants can hear these sounds far away.

The earliest known ancestors of modern-day elephants evolved about 60 million years ago. The ancestor of the elephants from 37 million years ago was aquatic and had a similar lifestyle to a hippopotamus.[4] Elephants are related to sea cows, which are large aquatic mammals.

The extinct animals called mammoths were relatives of today's elephants. Modern elephants live only in warm places, but the woolly mammoth had long hair and lived in cold places during the ice age.

Status today

Both African and Asian elephants are endangered species.[5]

Taxonomy

Family life

A female elephant will have a single baby, usually weighing about 90 kilograms when it is born, every four or five years. An elephant's gestation lasts about 22 months. Another female elephant often stays with the new mother until its baby is born. The newborn elephant can often stand within a half hour after it is born. Mother elephants touch their babies gently with their trunks. It takes a baby a year or more to control its trunk and learn its many uses.

Baby elephant nurse for the first two years of their lives. After it is born, the first thing that the baby does is wobble in search of its mother's milk. It drinks about 10 liters of milk every day.

Miscellaneous

White elephants are considered holy in Thailand.

The most famous fictional elephant is Dumbo. It is a flying elephant in a Disney movie. The Elephant's Child is one of Rudyard Kipling's Just So Stories

Ganesha is the god of wisdom in Hinduism. He has an elephant's head.

The elephant is the symbol for the United States Republican Party. It is like the Democratic Party's donkey. The first person to use the elephant as a symbol for the Republican Party was Thomas Nast. He did that in a Harper's Weekly cartoon in 1874.[6]

References

  1. "African Elephant". National Geographic. http://www3.nationalgeographic.com/animals/mammals/african-elephant.html. Retrieved 2007-06-16. 
  2. "Hungry Elephants Are No Match for Fearless Ants : Discovery News". news.discovery.com. http://news.discovery.com/animals/hungry-elephants-are-no-match-for-fearless-ants.html#mkcpgn=rssnws1. Retrieved 2 December 2010. 
  3. Mutualism with ants occur on Acacia trees in Africa, such as the Whistling Thorn acacia. The acacias provide shelter for ants in the thorns and nectar in extrafloral nectaries for their symbiotic ants such as Crematogaster mimosae. In turn, the ants protect the plant by attacking large mammalian herbivores and stem-boring beetles which damage the plant.
  4. Elephant 'had aquatic ancestor'. BBC News. April 15, 2008.
  5. "Endangered Animals - Elephants - UEN". uen.org. http://www.uen.org/utahlink/activities/view_activity.cgi?activity_id=3819. Retrieved November 11, 2010. 
  6. Kennedy, Robert C.. "Cartoon of the Day: "The Third-Term Panic"". Harpers Weekly. http://www.harpweek.com/09Cartoon/BrowseByDateCartoon.asp?Year=2003&Month=November&Date=7. Retrieved 2008-11-03. 

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