The trek—from the North American desert to Fiji—now represents the longest known migration of any terrestrial animal.

A genetic analysis reveals that Fiji’s iguanas are most closely related to lizards living in North America’s deserts. How is ...

“Even if the trait only evolved once, the fact that it has been retained across ... The green comes from biliverdin, a byproduct of dying red blood cells. The lizards have it in such great ...

Native to Europe, common wall lizards are growing bigger, faster, and more resilient in Ohio. Scientists say the city itself may be driving their evolution. A Lazarus lizard suns itself on a warm ...

Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 ...

Legless lizards evolved from the legged lizards with which most of us are familiar; legless snakes evolved from four-legged snakes that most of us have never seen. But the two do look an awful lot ...