TROGLOD^TES NICEI^, TIIF CHIMPANZEE 



5^)3 



oltc'ii accoinpann'cl l)\ a hi'ckoninij: \(.tv liuiiian in chaiattcT. Tlu- iliiiii|Xin/c'C 

 lias also a way ol In't-konm^ with its loot l)\ thrusting it forward, a little 

 sideways and seratehiii", with it on the tfround. Another obvious melliud of 



FIG. 2-52B. DETAII ED DIAGRAM OF BASE OF BRAIN", CHIMPANZEE. 



imitation is for one ape to indieale in his own person w hate\fr mo\enients 

 he would perform and the aeti\'it\ he w ishes the other to undertake, nuieh the 

 same as a do<i: in\ ites us to |)la\ In leaping and running about us. The ehiin- 

 panzees behave in thi.- same way, ineiting others to play with them. In all 



