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ANIMAL LIFE 



Fio. 169. On the shore of Narborongh Island, one of the Galapagos Islands, Pacific 

 Ocean, showing peculiar species of sea-lions, lizards, and cormorants. Drawn 

 from a photograph made by Messrs. SNODGBASS and HELLER. 



numbers so as to occupy the territory; but in so doing 

 only those will survive that can fit themselves to the new 

 conditions. Through this process a new species will be 

 formed, like the parent species in general structure, but 

 having gained new traits adjusted to the new environment. 



