Dinosaurs were in decline long before an asteroid strike polished them off about 66 million years ago, a study says. It's the latest contribution to a long-running debate: Did the asteroid reverse the ...

Imagine a world where dinosaurs and humans coexist. A new study is asking this question, as there may just be proof that had an asteroid not hit Earth and caused one of the great extinctions, ...

New analysis shows several families of dinosaurs were likely thriving in North America in the latter days of the dinosaur era. Reading time 3 minutes Diversity is central to one of the biggest ...

A ridge of rocks in New Mexico holds a snapshot of a dinosaur heyday. Fossils of crested hadrosaurs, long-necked sauropods and a variety of plants all point to a flourishing ecosystem. “Without this ...

Sixty six million years ago, a colossal asteroid crashed into what is now the Yucatán Peninsula in Mexico. It triggered the extinction of the dinosaurs and wiped out most life on Earth. But what if ...