1. CHIMPANZEE 



2. BABY ORANG-UTAN 



3. ORANG-UTAN 



4. BABY CHIMPANZEES 



In his famous book on The Expression of the 

 Emotions in Man and Animals (1872) Charles 

 Darwin showed that many forms of facial expres- 

 sion familiar in man have their counterparts in 

 apes and other mammals. He also showed how 

 important the movements of expression are as 

 mean* of communication between mother and 

 offspring, mate and mate, kith and kin. 



The anthropoid apes show notable differences 

 of temperament as the photographs show. The 

 chimpanzee is lively, cheerful, and educable. The 

 orang ii also mild of temper, but often and natu- 

 rally appeart melancholy in captivity. This is 

 not suggested, however, by our photograph of the 

 adult. Both chimpanxee and orang are markedly 

 contrasted with the fierce and gloomy gorilla. 



