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, ...

WASHINGTON (AP) — Scientists in Australia have identified the oldest known fossil footprints of a reptile-like animal, dated to around 350 million years ago. The discovery suggests that after the ...

"I'm stunned." says Per Ahlberg of Uppsala University, who coordinated the study; "A single track-bearing slab, which one person can lift, calls into question everything we thought we knew about when ...

(Reuters) -Seventeen footprints preserved in a slab of sandstone discovered in southeastern Australia dating to about 355 million years ago are rewriting the history of the evolution of land ...

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, ...

The fossil of a small reptile that inhabited Scotland during the age of dinosaurs 167 million years ago has scientists puzzled. It mixed snake-like traits and lizard-like traits. So was it an early ...

The gender gap has hit the animal kingdom ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. WASHINGTON — Scientists in Australia have identified the oldest known fossil footprints of a reptile-like animal, dated to around ...