New analysis shows several families of dinosaurs were likely thriving in North America in the latter days of the dinosaur era ...

The idea that dinosaurs were already in decline before an asteroid wiped most of them out 66 million years ago may be ...

A new study suggests that dinosaurs likely weren't in decline before an asteroid wiped them out 66 million years ago; instead ...

New research suggests the theory that dinosaurs were declining before Chicxulub is the result of a poor (and misleading) ...

Dinosaurs may not have been declining before the asteroid impact after all – new research shows that the apparent drop in ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. It’s a long ...

Fossils from the late Cretaceous are less likely to be discovered, say researchers, primarily because of fewer locations with ...

Earlier failed attempts at the split formed rift valleys in North America ... But perhaps the biggest changes came with the evolution of dinosaurs and the first mammals in the late Triassic ...

who now has a full-time job at a dinosaur museum built at that very site. From a hole he unearthed a two-foot-long shale slab. An experienced fossil hunter, Li split the slab and beheld a creature ...