The Probert Encyclopaedia of Nature

GORILLA

The gorilla (Troglodytes Gorilla) is the largest anthropoid ape attaining a height of about 5.5 feet and is found in west Africa. Although a gentle and vegetarian animal, myths prevailed from the mid- 19th century until the mid-20th century of it attacking and eating the natives.

The erect position is more readily assumed by the gorilla than by most of the other anthropoid apes, owing to the shape of the sole of the foot, which is not inverted, and is shorter and broader;
but the ordinary gait is on all-fours. It has a ferocious-looking cast of features, due to the prognathism of the jaws, the extremely prominent supra-orbital ridges, and retreating forehead. Gorillas make a sleeping-place somewhat like a hammock, connecting the branches of a tree by means of the long, tough, slender stems of climbing plants, and lining it with dried fronds of palms or long grass. This abode is constructed at different heights from the ground, but there is never more than one such nest in a tree. The gorilla, like the chimpanzee, has thirteen ribs, whereas man and the orang have twelve. The gorilla and chimpanzee also have eight bones in the carpus or wrist, while the others have nine. The bones of the arm are much longer than in man, and the upper arm is longer than the forearm; the leg bones are shorter than in man. In the proportion of its molar teeth to the incisors and in the form of its pelvis it approaches somewhat closely the human form. The Phoenician navigator Hanno found the name in use in the 5th century BC in West Africa.
Research Gorilla