448 



PRACTICAL ZOOLOGY 



opposable. The mental development of man has enabled him 

 to accommodate himself to every climate, and to dominate all 

 other animals. 



The human race may be divided into three primary groups : 

 (i) the Negroid races, (2) the Mongolian, and (3) the Cau- 



FIG. 316. The Bornean orang-utan. (From Elliott. Courtesy American 

 Museum of Natural History.) 



casian. The Negroid races possess frizzly hair, dark skin, a 

 broad, flat nose, thick lips, prominent eyes, and large teeth. 

 They are the African Negroes, the South African Bushmen, the 

 Central African and Philippine Pygmies, the Melanesians, 

 Tasmanians, and Australians. 



The Mongolian races possess black, straight hair, a yellowish 



