192 



EVOLUTION AND GENETICS 



the substratum; it is an effective organ for suspending the body 

 from branches within the limits of muscular strength; lastly, the 



Fig. 113.— Skeletons of man (A) and gorilla (B). (From Lull.) 



aliility to grasp objects enables the animal to move them about and 

 bring them before its eyes for examination. 



