Last years are full of unexpected researches about already well-familiar animals. This is the second amazing info about chameleons.
Last year I learned that chameleons use the ability to change the color in the first place not for camouflage. It is a way of social communication. By using colors they demonstrate the basic reactions: aggression, fear, obedience. Masking under the color of the leaves during hunting or rest is an additional function.
But the glowing bones is even cooler! Maybe we didn't notice that live on the planet Pandora from the movie Avatar :)