Mammalian hair has a surprising evolutionary origin, according to a study published in __PNAS__ this week: the reptilian claw. Evolutionary biologists have long conjectured about the origin of hair -- ...

This video explores the long-awaited arrival of Cayman lizards and the process of introducing them into their new enclosure, ...

Lizards come in all shapes and sizes, most of them of the smaller nature. What Joycelyn Penson encountered while visiting her son's home in Orland was not small. Penson spotted (and nabbed video of) a ...

Monitor lizards are a large group of lizards that fall under the genus Varanus. There are many different types, and they vary widely in size and appearance. Monitor lizards are not native to the ...