52 NATURAL HISTORY. 



this respect is very marked, the cat being much attached 

 to place, and little, if any, to persons. 



81. The differences between some of the varieties of 

 dogs are greater than -those existing between different 

 species of some animals. The Greyhound and the Bull- 

 dog, for example, are more unlike than the Lion and the 

 Tiger, two species of the cat tribe, and vastly more than 

 the Tiger and the Leopard. But the characteristics of 

 these species remain fixed age after age, because the in- 

 fluence of domestication is not brought to bear upon 

 them. Even the markings on the skins of such wild an- 

 imals remain unchanged from generation to generation. 

 Stripes and patches are therefore, in some of them, made 

 the basis of distinguishing different species, while in the 

 domesticated animals nothing is more common than 

 changes of color. 



82. The differences between the varieties of man are 

 no greater than those between the varieties of the dog, 

 the companion of man. And if domestication can pro- 

 duce these varieties in the one case, they surely can in 

 the other, where it has a still greater influence. The 

 doubts, then, existing in the minds of some in regard to 

 the single origin of the human race are unfounded, and 

 the account given in the Bible is proved true by an ob- 

 servation of facts. 



83. Although the Wolf, Fig. 34 (p. 53), belongs to the 

 dog family, dogs seem to be its natural enemies. While 

 the smaller flee from it in terror, the stronger pursue 

 and kill it. And yet it is thought by some that the orig- 

 inal dog was a Wolf; and it is asserted that, though this 

 animal is so fierce, it can be tamed when young, and is 

 then as susceptible of attachment to man as the dog is. 

 Wolves commonly hunt in packs or bands, and are very 

 crafty in their modes of taking their prey. Like other 

 wild beasts, they are exterminated as man cuts down the 

 forests and builds his habitations. In the early settle- 

 ment of this country they abounded even in the states on 



