TRAGEDY IN NATURE 157 



fullness of life. Indeed, that is what the healthy animal 

 does, enjoys all that life means to it; care, anxiety, appre- 

 hension, fear, as we understand them, have no place in 

 its economy. Tragedy and death are all around, but 

 they mean nothing to the creature which has no fear of 

 extinction, but is simply conscious that it exists and 

 that its existence consists in satisfying its immediate 

 needs. 



