Walt: Define adaptation
In biology, an adaptation, also called an adaptive trait, is a trait with a current functional role in the life history of an organism that is maintained and evolved by means of natural selection
Animals such as polar bears or camels adapt themselves so that they can survive in its environment. Adaptation is very important for animals, so that they can survive in the environment they are in.
Polar bears have thick outer fur. Polar bears have dig dens so that they can be warm.