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 -- ...

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 ...

Goannas are Australian monitor lizards that wander into schools and urban spaces, drawn by food smells and warmth. There are over two dozen goanna species in mainland Australia, occupying diverse ...

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 ...

Lizards are often misunderstood creatures, but their behaviors and adaptations are nothing short of extraordinary. What do lizards do to be so noteworthy? Prepare to be amazed. Lizards’ bodies are ...

While not venomous, their bite can cause serious infections and they are potentially dangerous to people and pets. This ...

"He's a big fella, and he's scary," homeowner Zachary Lieberman told "GMA." A 6-foot-long lizard has been terrorizing a Florida family for weeks after taking up residence in their backyard. "He's a ...

In a rocky desert of central Australia, a “large” creature with a “pointed” snout hid under some boulders. Its remote home likely helped it go largely unnoticed — until now. When visiting scientists ...

Creeping through the mangroves of Papua New Guinea, a clawed creature evaded detection. At least, it tried to and largely succeeded — until a scientist arrived on the island in the southwestern ...