Fiichew. 



The male is ihe nest-builder, and having 

 in it. Thereafter, he assiduously watches 



STICKLEBACKS AND THEIR NESTS. 

 The Sticklebacks of our freshwater ponds and streams are anions the fishes that construct nests. 



finished the structure to his satisfaction, be induces the female to enter and deposit her egg! . , , tu i r .i, 



and guards the nest, and by fannins with his tail-fins sends currents of fresh water over the egss until they are hatched. The male of he 

 Three-spined Stickleback in bridle attire is known as the Red-throat. That of the Ten-srined species under similar conditions is called 

 the Tinker on account of his ?ooty crnamentation. The figures are drawn to the natural size. 



