The process by which an animal becomes accustomed to its situation is referred to as

This process is called adapting, or adaptation. :)

Your answer is Adaption its when a animal find himself (gets lost) in a different climate and it changes physical features (appearances) so he will not be attack by a predator, he wont get cold, or hot such as a red tail fox when it gets into winter its fur changes white so he or she can blend in to its surroundings so it can catch prey and stay warm during winter also there is Owl is also changes white when it gets into winter to catch prey and blend in to its surroundings so it don't get attack.

If you eat to much it could kill you.