6o 



DOMESTICATED ANIMALS 



The success which has been attained in our ordinary large 

 herbivora, and which has made them competent to evade the 



chase of the 

 beasts of prey, 

 has been ac- 

 complished by 

 reducing the 

 number of the 

 toes, giving 

 the strength of 

 the aborted 

 parts to in- 

 crease the 

 power of those 

 remaining. 

 The result is 

 the formation 

 of two great 

 groups, the 

 double -hoofed 

 forms, includ- 

 ing the pigs, 

 deer, cattle, 

 sheep, and 

 their kindred, 

 and the single- 

 toed species, of 



A Hunter 



which our 



horse is the foremost example. In the reduction of the 

 number of toes, different plans were followed in each of 

 these groups. In the cloven-hoofed forms, a single toe 



