These scaly little sunbathers love soaking up the heat and if you catch one doing push-ups, don’t worry, it’s not prepping for a reptile CrossFit competition.

A western fence lizard performs its push-up display in Griffith Park. (Sean Greene / Los Angeles Times) This territoriality makes it easier for human observers to get relatively close to them.

The tracks also push back the origin of amniotes, a group that includes reptiles, birds and mammals, and provide new evidence about how animals transitioned from existing solely in the seas to ...

Early relatives of reptiles might have walked the Earth much earlier than realised. Amniote tracks uncovered in Australia have been dated to 356 million years ago – suggesting that the timeline of ...

Fossilized footprints of a primitive reptile found on a slab of rock from Australia could rewrite the story of how animals evolved to live on land.