1 82 Life and Love. 



gets without regard to the future. As all animals 

 tend to take on fat when deprived of their mascu- 

 line activity, man has not been slow to profit by the 

 fact in raising them for food. The pig, naturally 

 lean and agile, has by man's power of selection 

 and his knowledge of certain laws of life, been 

 reduced to a mass of fat and slothfulness. 



In the domestic animals man has taken upon 

 himself the offices of natural and sexual selection ; 

 producing, not the forms most advantageous to the 

 creature itself, but those most advantageous to him. 

 He has reduced one animal to a milk-giving ma- 

 chine, another to a fat and meat producing instru- 

 ment. By protecting and nourishing his useful 

 friends and developing them in directions beneficial 

 to him, he has produced a race of animals wholly de- 

 pendent upon him for their existence. Should these 

 animals, by some chance, be turned loose to com- 

 pete with their wild brethren they would quickly be 

 exterminated, any that survived speedily reverting, 

 through their descendants, to the original wild form. 



In many cases in the higher life the creature 

 continues to increase in size after the reproductive 

 system has begun to develop. For some time 



