In Doctor Who, an alien species called the Silurians exists – technologically-advanced humanoid reptiles who lived long ...

The 209-million-year-old fossil offers clues to the evolution of the reptiles, which have more than 150 named species ...

Scientists have unearthed in Arizona fossils from an assemblage of animals, including North America's oldest-known flying ...

In the New Guinea lizards, levels of a green bile pigment are 40 times higher than what would be toxic in humans. It's green enough to overwhelm the color of the red blood cells and turn ...

The snake-like lizards of the Brachymeles genus began with four legs, lost them about 62 million years ago, and then 20 million years later regained them to deal with a wetter climate ...