Our species likes it cold. Homo sapiens evolved in — and still inhabits — one of Earth’s rare and fragile ice ages, periods distinguished not by an abundance of saber-toothed cats and woolly mammoths ...

In the Cretaceous period, Earth was plagued by widespread volcanic activity, oceanic oxygen depletion events, and mass extinctions. Fossils from that era remain and continue to give scientists clues ...

This paper elucidates the ecological context of two theropod dinosaurs of differing body sizes inhabiting the lakeshore region of Otog Banner, Inner Mongolia. The larger theropod exhibited a walking ...

Glaciers have been present somewhere on Earth for at least 60 million years, a period stretching back almost to the time of the dinosaurs. That's the key finding of our new research, which pushes the ...

A new study finds that one of the hottest periods in Earth's history may have driven lampreys apart -- genetically speaking. The work could have implications for how aquatic species respond to our ...

Germany's waters once saw a recently discovered new reptile species known as the Enalioetes schroederi, best characterized as a crocodile which has dolphin-like qualities which lived around 135 ...

New research from Adelaide University suggests the power of the ancient Tethys Ocean might have shaped Central Asia's topography during the Cretaceous period. Ceratopsians were horned, beaked ...