278 ANIMAL LIFE 
we 
~ 
sis 4 
Fie. 169.—On the shore of Narborough Island, one of the Galapagos Islands, Pacific 
Ocean, showing peculiar species of sea-lions, lizards, and cormorants, Drawn 
from a photograph made by Messrs. SNopeRass 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. 
