A tiny skull found on a beach in Devon has rewritten the early history of lizards, snakes and the tuatara, the last survivor ...

Ichthyosaurs represent a diverse clade of Mesozoic marine reptiles that rapidly adapted to fully aquatic lifestyles following the end-Permian mass extinction. Their streamlined, 'fish-like' body plan, ...

Researchers report the discovery of the oldest known lizard ancestor in England, a tiny Triassic reptile with oversized teeth.

Body coverings such as hair and feathers have played a central role in evolution. They enabled warm-bloodedness by insulating the body, and were used for courtship, display, deterrence of enemies and, ...

Heat and cold reshape fertility in reptiles, from scrambled sperm to sex reversal, with lessons for evolution under climate ...

A groundbreaking fossil discovery in northern Victoria, Australia, is shaking up paleontology. Fossilized footprints from the Carboniferous Period, around 359 million years ago, suggest that reptiles ...

The sprawling-upright transition across mammal evolution, showing changes in posture and limb bone shape. The transition from sprawling (reptile-like) to more upright (parasagittal) posture and ...

WASHINGTON — Scientists in Australia have identified the oldest known fossil footprints of a reptilelike animal, dated to around 350 million years ago. The discovery suggests that after the first ...

A breakthrough in paleontology has emerged with the unearthing of a remarkable fossil, which challenges long-standing assumptions about the evolution of body coverings in reptiles. Published in ...

MSRLSI copy gift of Dr. George R. Zug and signed by author VPAL copy gift of the author; signed by the author and inscribed for the NMNH Library "Over 300 million years ago, an early land vertebrate ...

Biodiversity is disappearing at an alarming rate and is driven by human activity: contamination, greenhouse gases and extreme ...