Man m the Light of Evolution 



Finally, as we have seen, in human history it un- 

 masks itself and appears as a power making for 

 righteousness and unselfishness. 



All animals live in one world. But in a very 

 true sense fish, barnacle, and protozoan, all liv- 

 ing side by side in the water, still live in different 

 worlds. Higher forms pry deeper and lift them- 

 selves higher and thus come into relation with 

 elements which pass over the lower form with- 

 out affecting it. The development of the visual 

 eye, the passage from blindness to sight, revo- 

 lutionized the animal kingdom. Directly or in- 

 directly it brought the animal under a host of 

 new conditions and emergencies. It changed 

 the environment of the animal, and the seeing 

 animal became a most important element in the 

 environment of all his neighbors. The life of 

 the animal kingdom is a series of experiments, 

 and every experiment results in the discovery of 

 something before unknown or unrecognized 

 which now becomes a part of environment. Up 

 to this time the unrecognized element may or 

 may not have impressed itself upon the animal. 

 The animal kingdom seems at first to drift like 

 a raft on the current. Later it raises sail; it 

 has given to an old force a new hold upon 



i68 



