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PRACTICAL ZOOLOGY 



The orang-utans (Fig. 316) are confined to Borneo and Sumatra. 

 They live principally in the tree tops, where they construct a 

 sort of nest for themselves. Orang-utans are about four and a 

 half feet in height, and when walking, use their knuckles as well 



FIG. 314. Bengal macaque, an Old World monkey. (From Elliott. Cour- 

 tesy American Museum of Natural History.) 



as their feet. The brain of this species is more nearly like that 

 of man than the brain of any other animal. 



The gorilla inhabits the forests of western Africa. It is 

 arboreal, feeds mainly on vegetation, has large canine teeth, 

 reaches a height of five and a half feet and a weight of 

 about five hundred pounds, walks on the soles of its feet aided 

 by the backs of the hands, and is ferocious and untamable. 



The chimpanzee (Fig. 317) also lives in West Africa. It re- 

 sembles the gorilla, but has shorter arms and a smoother, rounder 

 skull. It is easily tamed. 



