What is adaptation?

Walt: define adaptation.
The process of change by which an organism or species becomes better suited to it's environment. Adaptation is what herbivores,carnivores or omnivores do to survive (adapt). For an example  like the dessert of the polar regions.

A polar bear has many different adaptations that it has in mind. It's fur is hollow but also absorbed the light (heat) to keep it's self warm in the Arctic. The fat on the polar bear is greasy.