COI*OR IN ANIMALS 125 



mottled light and darker brown with small white blotches, 

 and these colors are reproduced in the fishes and with the 

 characteristic irregularity seen in the seaweed. (See also 

 Fig. 32.) Many other examples might be cited, but enough 

 has been said to emphasize the remarkable nature and 

 the prevalence of phenomena of protective color and re- 

 semblance. 



Aggressive coloration and resemblance. 



Let us next look at some instances of aggressive color- 

 ation and resemblance. Here we have phenomena very 



FIG. 33. Tree-frogs whose backs resemble oak leaves in color and color pattern. [From 



BEDDARD.] 



similar to those just illustrated, but the use of the color or 

 resemblance is just the opposite to that which we have 

 seen. Instead of enabling its possessor to escape its enemies 

 the color or resemblance enables it to capture its prey. 

 Anything which will render a predaceous animal less con- 



