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, ...

Challenging a 75-year-old notion about how and when reptiles evolved during the past 300 million-plus years involves a lot of camerawork, loads of CT scanning, and, most of all, thousands of miles of ...

Some 80 million years before birds took flight, another group of creatures dominated the skies — the pterosaurs. These ...

Fossilized footprints discovered in southeastern Australia, dating back approximately 355 million years, have forced scientists to rethink the timeline of reptile evolution. Detailed in a recent study ...

An extinct reptile’s oddly shaped chompers, fingers, and ear bones may tell us quite a bit about the resilience of life on Earth, according to a new study. In fact, paleontologists at Yale, Sam ...

(CNN) — Scientists have discovered a 246 million-year-old marine reptile fossil, the oldest of its kind to be found in the Southern Hemisphere, shining a new light on the early evolution of marine ...

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 ...

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, ...

A 280 million-year-old fossil thought to be a well-preserved specimen of an ancient reptile is largely a forgery, according to new research. The fossil, initially discovered in the Italian Alps in ...

There are an estimated 50 billion birds flying, walking and even swimming on planet Earth according to a study published in the Proceedings of the National Academy of Sciences. That number is divided ...