The mystery behind the origins of the dinosaurs may have been given a new twist, with a modeling study suggesting they may have evolved in what is today equatorial Africa and South America. This would ...

An international team led by researchers at Uppsala University has analyzed fossilized dinosaur droppings—known as coprolites—to uncover details about the diets and ecological roles of dinosaurs 200 ...

Rhinos’ evolutionary relationships became a little clearer with the sequencing of the oldest proteins yet. Researchers have described proteins that they say are among the most ancient ever sequenced.

A femur discovered in Zambia could well rewrite part of dinosaur history. This fossil, 225 million years old, belongs to a silesaur, a reptile closely related to dinosaurs. Silesaurs, long considered ...

In Paraíso do Sul in southern Brazil, scientists discovered a fossil of a dog-sized reptile dating back to 237 million years ago. The creature, a newly described species named Gondwanax paraisensis, ...

Dinosaurs were once assumed to have been ectothermic, or cold-blooded, an idea that makes sense given that they were reptiles. While scientists had previously discovered evidence of dinosaur species ...

The study of palaeontology has long provided a window into the dynamic evolutionary history of dinosaurs and their avian descendants. Recent research has uncovered intricate details regarding the ...

Birds are the only dinosaur lineage that survived until today. About 66 million years ago at the Cretaceous–Paleogene (K–Pg) boundary, a mass extinction event destroyed all non-avian dinosaurs, ...

Mixodectes pungens lived only a few million years after the dinosaurs went extinct. By Laura Baisas Published Mar 11, 2025 2:30 PM EDT Get the Popular Science daily newsletter💡 Breakthroughs, ...

Despite multiple mass extinctions, the frilled shark has managed to thrive for 100 million years. Today, it remains one of ...