Many animals that live in temperate climates change colors every year.

It's not the case of this one. I just wanted to point that many do :)

(Now, seriously, gray and white are probably a very good disguise in places where the snow doesn't take over everything all the time.)

Also Greenland isn't green...

[ insert here snow white live action joke ]

They live in areas that are covered by snow for at least part of the year, such as the Himalayas, Tibet and parts of Central Asia and Mongolia. The animal itself can vary in colour from cream to grey or tan.

Look up fire coral :D