COURTSHIP AMONG ANIMALS 25 



the face and head parts are often ornamented with 

 vividly coloured patches in blue, violet, or red, which 

 are generally more pronounced in the male, and 

 become more brilliant in both sexes during the breed- 



FIG. 16. MONKEYS. 



(Prom " The Descent of Man," by C. Darwin.) 



ing season. In some species the males are charac- 

 terized by strange and sometimes grotesque hairy 

 growths, such as manes, beards, tufts, etc. (Fig. 16). 

 The females of some of the higher apes have a regular 



