Turtles can be confusing animals, since they have characteristics that are traditionally associated with both reptiles and amphibians. For example, their smooth skin makes most people think of ...

Lizards are ancient creatures. They were around before the dinosaurs and persisted long after dinosaurs went extinct. We’ve now found they are 35 million years older than we thought they were.

For the more than 242 million years that lizards and snakes appear in the fossil record, they show up mostly as pieces of lizard jaws and snake vertebrae. Exactly why these parts survive as fossils ...