An angry chameleon may exhibit yellow, because the yellow cells have fully expanded, thus blocking off all blue-reflected light from below. Other lizards, like the green anole, can also change color.

Chameleons are fascinating creatures with their long tongues, rotating eyes, and brilliant colors, which is why they make such interesting pets. But with more than 200 species in the world, how do you ...

Scientists recently have made important discoveries about chameleon physiology by watching the lizards in captivity. Their future in the wild, meanwhile, is far from certain. In Afrikaans ...

BL Lacertae, an enigmatic blazar, has shattered long-held classification norms, leaving astronomers baffled. Originally ...

Lizards are a diverse and ancient group of reptiles that live around the world today. There are thousands of lizard species, and each has special adaptations and traits. They range in size from the ...

Why it's awesome: Labord's chameleons live fast and die young. They hold the record for the shortest lifespan of all tetrapods — they hatch, grow, mate and die in just four to five months.