362 BACKBONED ANIMALS. 
and forming nests of branches in the crotches near the 
ground. They are very intelligent, easily domesticated, 
and often brought to this country and Europe. 
Fic. 380.—a, hand, 4, foot of chimpanzee. (After Vogt.) c, hand, @, foot 
of man. 
The gorilla (Zroglodytes) (Fig. 379) is the largest and 
most powerful of the order, though perhaps ranking with 
the chimpanzee as regards its position in the scale of life. 
They are also found in western Africa, and have a less ex- 
tended range, being found only between the rivers Came- 
roons and Congo, in the mountains of Guinea. Their hab- 
its are similar to those of the chimpanzee, though living in 
small communities, generally led by a single male. They 
erect uncovered platforms in the trees upon which to rest, 
deserting them during the day, and forming others at night. 
They attain a height of five feet six inches, and a weight 
of two hundred pounds. The color of the fur is a black- 
ish dun, turning gray with age. The skin is black, the 
ridges of the forehead (Fig. 381) prominent, the nose flat, 
lips and chin protruding, and the expression of the face 
demoniacal. The limbs are enormously powerful, and the 
first joints of all the fingers and three of the toes are con- 
nected bya strong web. While the chimpanzee resembles. 
man in the characteristics given, the gorilla is more human 
in the proportions of the leg to the body and of the foot 
rr 
