We all know what chameleons are capable of: changing into a variety of colors to match their surroundings. They're one of the animals that are so well camouflaged you'd never see them right in front ...

Four of them live in Colorado: snowshoe hares, white-tailed ptarmigan, short-tailed weasels and long-tailed weasels.

Color change in animals is a response shaped by evolution. Each species has developed its own method and reason for this ability, like an overreliance on light or temperature cues, or a physiological ...