REASON FOR LONG AND POWERFUL SNOUT. 89 



That will show you how strong is a pig's smell 

 for roots when he can tell the hunters where to 

 dig for the truffle, although the truffles grow a 

 foot under the soil. 



A pig was once broken in by a gamekeeper to 

 tell the shooters the whereabouts of a covey of 

 partridges, and it was observed that the pig 

 noticed the scent of the partridges when they 

 had been passed over by the best pointer dog. 



You see how, to preserve its life in the wild 

 state, an animal adopts certain habits. Man then 

 observes these habits, and seeks out how they 

 can be of use to him, and so he domesticates the 

 animal, presses it into his service. But man 

 goes farther than this ; he is not satisfied with 

 the habit of the wild animal, but by selection, or 

 by breeding, and rearing only from those animals 

 that look nearest like the end he has in view, he 

 still further develops the habit of the wild ancestry. 



In their endeavours to escape their enemies, to 

 live, and not to die, 



a wild horse developed powers of speed, 



a wild cow developed powers of milking, 



a wild pig developed powers of putting on fat 

 in a short space of time. And these habits 

 acquired by animals, when in their wild state, 

 have been used and increased by man in the 

 service of man, and have added to human happi- 

 ness and power. 



