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 ...

A rare rainforest insect, Arota festae, starts life bright pink before slowly turning green, revealing a surprising ...

In nature, it's not uncommon to observe animals that change color with the seasons. You may have heard of the arctic fox or the mountain hare, which are white in winter and brown in summer. This ...

Blue sharks possess a secret hidden in their skin: a sophisticated arrangement of microscopic crystals and pigments that create their brilliant blue appearance — and may allow them to change color.

Winter is hard, and for wildlife in Colorado, it’s even harder. To survive, many species have developed adaptations over hundreds of thousands of years that allow them to weather the storms, including ...