Color in Nature 



335 



which are best adapted to their environment. With selection 

 then as a framework a number of theories have Been ad- 

 vanced in explanation of animal colors. 



The first of these is that of protective color which may be 



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PROTECTIVE FORM AND COLOR IN ANIMALS 



A. Woodcock on her nest. From a photograph by Dugmore. 



B. Night hawk on a log. 



C. Toad on ground. 



D. Tree toad on bark. 



E. Tree lizards on oak bark. 



F. Caterpillar on twig. 



From Metcalf, "Organic Evolution." 



By permission of the Macmillan Company. 



either general or specific. "Camouflage" is not a new art 

 to animals, and man in adapting it to his own use has been 

 merely following the advice of Solomon, and learning wis- 

 dom from the humbler creatures of field and forest. The 

 existence of a close resemblance between many animals and 



