GORILLA (or PoNGO), the largest of the man-like
apes, and a native of West
Africa from the
Congo to
Cameroon, whence it extends eastwards across
the continent to
German East Africa. Many naturalists
regard the gorilla as best included in the same genus as the
chimpanzee, in which case
it should be known as
Anthropopithecus gorilla, but by
others it is regarded as the representative of a genus by itself,
when its title will be
Gorilla savagei, or
G.
gorilla. That there are local forms of gorilla is quite
certain: but whether any of these are entitled to rank as distinct
species may be a matter of opinion. It was long supposed that the
apes encountered on an island off the west coast of Africa by
Hanno, the Carthaginian, were
gorillas, but in the XII. 9 opinion of some of those best qualified
to
judge, it is probable that
the creatures in question were really baboons. The first real
account of the gorilla appears to be the one given by an English
sailor, Andrew
Battel, who
spent some time in the wilds of West Africa during and about the
year 1590; his account being presented in Purchas's
Pilgrimage,
published in the year 1613. From this appears that Battel was
familiar with both the chimpanzee and the gorilla, the former of
which he terms engeco and the latter pongo - names which ought
apparently to be adopted for these two species in place of those
now in use. Between Battel's time and 1846 nothing appears to have
been heard of the gorilla or pongo, but in that year a missionary
at the
Gabun accidentally
discovered a
skull of the huge
ape; and in 1847 a sketch of that
specimen, together with two others, came into the hands of Sir R.
Owen, by whom the name
Gorilla savagei was proposed for
the new ape in 1848. Dr Thomas
Savage, a missionary at the Gabun, who sent Owen
information with regard to the original skull, had, however,
himself proposed the name
Troglodytes gorilla in 1847. The first
complete
skeleton of a
gorilla sent to
Europe was
received at the museum of the Royal College of Surgeons in 1851,
and the first complete skin appears to have reached the British
Museum in 1858. Paul B. du Chaillu's account (1861) of his journeys
in the Gabun region popularized the knowledge of the existence of
the gorilla. Male gorillas largely exceed the females in size, and
attain a height of from 51 ft. to 62 ft., or perhaps even more.
Some of the features distinguishing the gorilla from the mere
gorilla-like chimpanzees will be found mentioned in the article
PRIMATES. Among them are the
small ears, elongated head, the presence of a deep groove alongside
the nostrils, the small size of the thumb, and the great length of
the arm, which reaches half-way down the shin-
bone (tibia) in the erect posture. In old males
the eyes are overhung by a beetling
penthouse of bone, the hinder half of the
middle line of the skull bears a wall-like bony ridge for the
attachment of the
powerful
jaw-muscles, and the tusks,
or canines, are of monstrous size, recalling those of a carnivorous
animal. The general colour is blackish, with a more or less marked
grey or brownish tinge on the hair of the shoulders, and sometimes
of
chestnut on the head.
Mr G. L. Bates (in
Proc. Zool. Soc., 1905, vol. i.) states
that gorillas only leave the depths of the forest to enter the
outlying clearings in the neighbourhood of human settlements when
they are attracted by some special
fruit or succulent plant; the favourite being the
fruit of the "mejom," a tall
cane-like plant (perhaps a kind of
Amomum) which grows abundantly on deserted clearings. At
one isolated village the natives, who were unarmed, reported that
they not unfrequently saw and heard the gorillas, which broke down
the stalks of the plantains in the
rear of the habitations to
tear out and eat the
tender heart.
On the old clearings of another village Mr Bates himself, although
he did not see a gorilla, saw the fresh tracks of these great apes
and the torn stems and discarded fruit rinds of the "mejoms," as
well as the broken stalks of the latter, which had been used for
beds. On another occasion he came across the
bed of an old gorilla which had been used only the
night before, as was proved by a negro woman, who on the previous
evening had heard the animal breaking and treading down the stalks
to form its couch. According to native report, the gorillas
sleep on these beds, which are of
sufficient thickness to raise them a foot or two above the ground,
in a sitting posture, with the head inclined forwards on the
breast. In the first case Mr
Bates states that the tracks and beds indicated the presence of
three or four gorillas, some of which were small. This account does
not by any means
accord with
one given by von Koppenfels, in which it is stated that while the
old male gorilla sleeps in a sitting posture at the base of a
tree-
trunk (no mention being made of a bed), the
female and young ones pass the night in a
nest in the tree several yards above the ground,
made by bending the boughs together and covering them with twigs
and
moss. Mr Bates's account, as
being based on actual inspection of the beds, is probably the more
trustworthy. Even when asleep and snoring, gorillas are difficult
to approach, since they awake at the slightest rustle, and an
attempt to surround the one heard making his bed by the woman
resulted in failure. Most gorillas killed by natives are believed
by Mr Bates to have been encountered suddenly in the daytime on the
ground or in low trees in the outlying clearings. Many natives,
even if armed, refuse, however, to molest an adult male gorilla, on
account of its ferocity when wounded. Mr Bates, like Mr Wiriwood
Reade, refused to credit du Chaillu's account of his having killed
gorillas, and stated that the only instance he knew of one of these
animals being slain by a European was an old male (now in Mr Walter
Rothschild's museum at Tring) shot by the German trader Paschen in
the Yaunde district, of which an illustrated account was published
in 1901. Mr E. J. Corns states, however, that two European traders,
apparently in the "'eighties" of the 19th century, were in the
habit of surrounding and capturing these animals as occasion
offered.' Fully adult gorillas have never been seen alive in
captivity - and perhaps never will be, as the creature is ferocious
and morose to a degree. So long ago as the year 1855, when the
species was known to zoologists only by its skeleton, a gorilla was
actually living in
England.
This animal, a young female, came from the Gabun, and was kept for
some months in Wombwell's travelling
menagerie, where it was treated as a pet. On
its death, the body was sent to Mr
Charles Waterton, of
Walton Hall, by whom the skin was mounted in a
grotesque manner, and
the skeleton given to the
Leeds
museum. Apparently, however, it was not till several years later
that the skin was recognized by Mr A. D.
Bartlett as that of a gorilla;
the animal having probably been regarded by its owner as a
chimpanzee. A young male was purchased by the Zoological Society in
October 1887, from Mr Cross, the
Liverpool dealer in animals. At the time of
arrival it was supposed to be about three years old, and stood 22
ft. high. A second, a male, supposed to be rather older, was
acquired in March 1896, having been brought to Liverpool from the
French Congo. It
is described as having been thoroughly healthy at the date of its
arrival, and of an amiable and tractable disposition. Neither
survived long. Two others were received in the Zoological Society's
menagerie in 1904, and another was housed there for a short time in
the following year, while a fifth was received in 1906.
Falkenstein's gorilla, exhibited at the
Westminster aquarium under the name of pongo, and
afterwards at the
Berlin
aquarium, survived for eighteen months. "Pussi," the gorilla of the
Breslau Zoological
Gardens, holds a record for
longevity, with over
seven years
of menagerie life. Writing in 1903 Mr T. W. Hornaday stated that
but one live gorilla, and that a tiny
infant, had ever landed in
the United
States; and it lived only five days after arrival. (R. L.*)