THE DESCENT OF MAN. 



species in a single white stripe replacing the three stripes, 

 and in the ears being almost wholly white.* After having 

 studied to the best of my ability the sexual differences of 

 :mimals belonging to all classes,! cannot avoid the conclusion 

 that the curiously arranged colors of many antelopes, though. 



Fig. 71. Damalis pygarga, male (from t'ne Enowsley Menagerie). 



common to both sexes, are the result of sexual selection 

 primarily applied to the male. 



The same conclusion may perhaps be extended to the 

 tiger, one of the most beautiful animals in the world, the 

 sexes of which cannot be distinguished by color, even by 

 the dealers in wild beasts. Mr. Wallace believes! that the 

 striped coat of the tiger " so assimilates with the vertical 



*See the fine plates in A. Smith's "Zoology of S. Africa," and Dp 

 Gray's " Gleanings from the Menagerie of Knowsley." 

 f "Westminster Review," July 1,1867, p. 5. 



