Snowshoe hares have large hind feet that prevent them from sinking into soft snow. Their brown coats turn white in the winter to blend in with the snow. These hares have adapted in order to survive and reproduce in their snowy environment. What is this an example of?

This is an example of Morphological and structural adaptation

Explanation:

The morphological and structural adaptation is an anatomical adaptation, where living beings exhibit some characteristics that allow them to survive according to the environment in which they are, either promoting a camouflage, or resembling animals that are dangerous to frighten possible predators.

An example of this can be seen in the question above, where the hare, in order to survive and reproduce, allow the hair to become white as snow, and can camouflage themselves in the environment in which they are.