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 ...

You’ve probably heard that chameleons change color to blend into their background in order to hide. But that might not actually be true. So what do they actually use this color-changing ability for?

Have you ever wondered how chameleons change colour? And can they do this while they’re asleep? What about if they are able to dream? Does their dream flash across their bodies in reds, turquoises and ...

Chameleons, famous for shifting colors to blend into their natural surroundings to avoid predators, may also be using their chromatic superpowers for a totally different reason: To win fights. This ...

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 ...