stages in Human Evolntion 



sion of thought. Muscles of speech and ex- 

 pression are more effective and really more 

 powerful than those of back and legs. The 

 postpliocene or quaternary age is the era of mind. 



The lower animal has a very limited range of 

 environment. It moves but a little distance and 

 becomes acquainted with but few objects or 

 forces. The higher animals range over a wide 

 territory and learn finer shades of difference be- 

 tween a host of objects. Man's home is the 

 world or the universe, and he is interested in all 

 its features. The animal learns the relation be- 

 tween a few important objects and himself. 

 Man is interested in the relation of objects to 

 one another, even when the relation to himself 

 Is dim and remote. 



Finally animals, either consciously or by a 

 blind Instinct, make some provision for the fu- 

 ture. Migrations take place or food is stored 

 up against the approach of winter. These pro- 

 visions are more numerous than we suspect. But 

 they generally affect a future almost immediate 

 or near at hand. Only as man searches far back 

 Into the past experience or history of his family 

 or nation does he begin to peer into the remote 

 future and to prepare for its opportunities and 



39 



