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

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

Researchers at the University of Bristol have discovered that mammals began adapting to terrestrial lifestyles millions of ...

Professor Janis said, "The vegetational habitat was more important for the course of Cretaceous mammalian evolution than any ...

An extinct lineage of parasitic wasps dating from the mid-Cretaceous period and preserved in amber may have used their Venus ...

Learn more about the mammalian transition from arboreal to terrestrial life, which began millions of years before the arrival ...

A newly identified parasitic wasp that buzzed and flew among dinosaurs 99 million years ago evolved a bizarre mechanism, ...

The study utilized limb bone fossils to reveal that ecological changes in the late Cretaceous ... during the period influenced the evolution of mammals. Study reveals how plant evolution shaped ...

The findings suggest that mammals were adapting to terrestrial life well before the end of the Cretaceous period. The team discovered ... the spread of flowering plants, known as angiosperms ...

A new dinosaur species, Duonychus tsogtbaatari, was discovered in Mongolia's Gobi Desert. This therizinosaurs member featured unique two-fingered hands with large claws, unlike others in its group.

Oviraptorosaurs are weird dinosaurs that look a bit like flightless birds. But these ancient animals aren't just ...