Scientists studied a mammal that lived 250 million years ago and found they had an eardrum that could detect and react to ...

Changes in inner ear canal morphology over time suggest that mammalian ancestors called mammaliamorphs evolved warm-bloodedness around 233 million years ago during the late Triassic period, according ...

Museum fossils in England reveal 200-million-year-old coelacanths, fish that swam alongside the first dinosaurs ...

In a review, published today in the journal Frontiers in Earth Science, scientists reveal that predators became meaner and prey animals adapted rapidly to find new ways to survive. On land, the ...

Researchers have discovered a previously unknown crocodile-like reptile species that lived around 237 million years ago during the Triassic Period. It has been described as an "extremely rare" ...

The Triassic-Jurassic Extinction Event: How Dinosaurs Took Over Roughly 201 million years ago, the Triassic-Jurassic extinction event wiped out about 76% of all marine and land species on Earth. This ...

Roughly 201 million years ago, the Triassic-Jurassic extinction event wiped out about 76% of all marine and land species on Earth. This cleared the stage for dinosaurs to take over for the next 135 ...