The gender gap has hit the animal kingdom ...

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, ...

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 ...

The evolution of feathers in ancient animals was restricted to dinosaurs and their modern bird descendants. However, a reptile of the Middle Triassic period evolved something similar to feathers, ...

Scientists in Australia have discovered a rare new lizard species with no front arms and only back limbs, revealing how ...

Our bones did not begin deep inside the body. They started in the skin, not long after the first complex animals took shape.

The newly described Mirasaura grauvogeli from the Middle Triassic had a striking feather-like crest, hinting that complex skin appendages arose far earlier than previously believed. Its bird-like ...

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 fossil found over two decades ago on England’s Jurassic Coast has proved to be one of the most significant discoveries of marine reptiles in recent times. The almost complete skeleton of a ...

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 ...

For more than a century, biologists assumed that the bony plates embedded in the skin of lizards – like natural chain mail – ...