The Mesozoic Era extinctions formed the world as we know it today. Read about what caused them and which animals survived.

Exactly which animals were affected ... Perhaps the most well-known extinction is the Cretaceous-Paleogene (K-Pg) extinction event, which took place 66 million years ago. We all know about ...

Researchers suggest that ground-based mammals fared better than their arboreal relatives during the end-Cretaceous extinction thanks to their lifestyle.

Discover the most complete fossil of Mixodectes pungens, shedding light on early mammalian evolution, its arboreal lifestyle, ...

Chief executives of the US Gulf’s larger players, including Chevron’s Mike Wirth and Occidental’s Vicki Hollub, touted the ...

The idea that extreme heat could one day cause a mass extinction and end the dominance of humans is not as farfetched as it ...

A new study found dinosaurs were thriving on Earth before asteroid hit, challenging idea they were already in decline before ...

Small fossils show mammals moved to the ground before the dinosaurs vanished. New plants changed habitats, giving better food ...

4 - Triassic-Jurassic (201.3 million years ago) saw up to 75 per cent of all species extinct, including most of the large amphibians, leaving dinosaurs with little land competition. 5 - ...