WASHINGTON – Scientists have mapped how a group of fearsome, massive dinosaurs evolved and shrank to the likes of robins and hummingbirds. Comparing fossils of 120 different species and 1,500 skeletal ...

(CNN) — Scientists have identified a previously unknown 86 million-year-old dinosaur species that fills an early gap in the fossil record of tyrannosaurs, revealing how they evolved to become massive ...

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.

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, ...

Move over, triceratops — a new horned dinosaur has entered the scene. A display of the Lokiceratops rangiformis, a freshly discovered species of horned dinosaur, was set to be unveiled Thursday at the ...