How do wolves adapt to there advierment?

Well, if some type of wolf that lives in a cold environment changes into a hot environment, it's most likelyhe can't adapt to the new conditions. But what can happen is that there can be 2 types of wolves.

Anyways, the ones that live in the cold have smaller ears and the fur is bigger. As for the ones in a less cold environment, they usually have big ears and the fur is smaller.