The shift from lizard-like sprawl to upright walking in mammals wasn’t a smooth climb up the evolutionary ladder. Instead, it ...

The sprawling-upright transition across mammal evolution, showing changes in posture and limb bone shape. Magdalen Mercado, ...

The transition from sprawling (reptile-like) to more upright (parasagittal) posture and locomotion was a transformative event in mammalian evolution ...

This new discovery would push back the evolution of these animals by roughly 30 million years, as early reptiles were previously thought to have evolved around 320 million years ago. You may like ...

Footprints from Australia show reptiles may have evolved 35 million years earlier than thought, changing the timeline of ...

Two lizard-like creatures crossed tracks 355 million years ago. Today, their footprints yield a major discovery. The emergence of four-legged animals known as tetrapods was a key step in the evolution ...

Every lizard we catch, every measurement we take adds another piece to our understanding of how species adapt and evolve in an ever-changing world. Evolution Natural selection ...