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Ravens are omnivores.

Omnivores (from Latin: omni all, everything; vorare(infinitive) to devour) are species that eat both plants and animals as their primary food source. They are opportunistic, general feeders not specifically adapted to eat and digest either meat or plant material exclusively. Pigs are one well-known example of an omnivore.[1] Crows are another example of an omnivore that many people see every day.[2] Humans are also well-known omnivores.[3][4]

Although there are reported cases of herbivores eating meat matter, as well as examples of carnivores eating plants, the classification refers to the adaptations and main food source of the species in general, so these exceptions do not make either individual animals nor the species as a whole omnivores.

Most bear species are considered omnivores, but individuals' diets can range from almost exclusively herbivorous to almost exclusively carnivorous, depending on what food sources are available locally and seasonally. Polar bears can be classified as carnivores while pandas almost exclusively eat bamboo and are therefore herbivores, although giant pandas will eat some meat from time to time.

Species considered omnivorous

Various mammals are omnivorous by nature, such as humans, pigs, badgers, bears, coatis, hedgehogs, opossums, skunks, sloths, squirrels[5], raccoons, chipmunks[6], mice[7] and rats[8]. Also some primates are omnivorous including chimpanzees. Various birds are omnivorous, whose diet varies from berries and nectar to insects, worms, fish, and small rodents; examples include cassowarys, chickens, corvids/crows, magpies, ravens, rooks, keas, rallidae and rheas. In addition, some lizards, turtles, fish, such as piranhas, and invertebrates are also omnivorous.

References

  1. ^ Brent Huffman. "Family Suidae (Pigs)". UltimateUngulate.com. http://www.ultimateungulate.com/Cetartiodactyla/Suidae.html. Retrieved 2007-12-29. 
  2. ^ Seattle Audubon Society. "Family Corvidae (Crows/Ravens)". BirdWeb.org. http://birdweb.org/birdweb/bird_details.aspx?id=318. Retrieved 2007-12-31. 
  3. ^ Adapted from a talk by John McArdle, Ph.D.. "Most Humans are Omnivores". Vegetarian Resource Group. http://www.vrg.org/nutshell/omni.htm. Retrieved 2007-12-29. 
  4. ^ "Omnivores". NatureWorks, New Hampshire Public Television. http://www.nhptv.org/natureworks/nwep10b.htm. Retrieved 2009-09-09. 
  5. ^ "Tree Squirrels". The Humane Society of the United States. http://www.hsus.org/wildlife/a_closer_look_at_wildlife/tree_squirrels.html. Retrieved 2009-01-01. 
  6. ^ "Eastern Chipmunk". Wonder Club. http://www.wonderclub.com/Wildlife/mammals/easternchipmunk.htm. Retrieved 2009-01-01. 
  7. ^ "Florida Mouse". United States Fauna. http://www.unitedstatesfauna.com/floridamouse.php. Retrieved 2009-01-01. 
  8. ^ "Brown Rat". Science Daily. http://www.sciencedaily.com/articles/b/brown_rat.htm. Retrieved 2009-01-01. 

Simple English


Omnivores are animals that actively seek out both plants and animals to supply nutrition. Omni means all. Grizzly bears are classic omnivores, eating plants and berries, but hunting prey and salmon when available. Other examples are:

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