The popular belief is that chameleons change color solely to disappear into their surroundings. While camouflage does play a part, it is not the only or even the primary reason. Chameleons also alter ...

What a great question, Ikechukwu! It doesn’t have a simple answer, though: yes, chameleons do change color when they sleep, but we think it happens in a different way to when they’re awake. People ...

Controlling color Chameleons change color by contracting and relaxing certain cells in their skin that contain either crystals or pigments. The crystals are colorless or slightly yellow, but by lining ...