U.S. researchers have identified two dozen new species of lizards on the Caribbean islands, and about half of them may be extinct or close to extinction.

A chameleon small enough to sit comfortably on the head of a matchstick has been discovered on a tiny islet in Madagascar.

A newly discovered miniature chameleon may be the smallest lizard in the world. It's one of many astonishingly small creatures discovered in recent years and highlighted in this gallery.

A rare skeleton of an ancient marine reptile that captures fossilized evidence that the female Ichthyosaur died in childbirth is one of several unique items that will go on display at the Houston Museum of Natural Science's new dinosaur hall when it opens June 2.