By Will Dunham July 23 (Reuters) - Snakes first appeared during the age of dinosaurs, but fossils of many early species are ...

Think of a warm-blooded animal. You're probably picturing a cow or a dog, maybe an elephant. But how about a tuna?

A remarkable fossil forest reveals dinosaurs may have helped spread fruit-bearing plants tens of millions of years earlier ...

The birds of today descended from the dinosaurs of yore. Researchers have known relatively little, however, about how the bird's brain took shape over tens of millions of years. "Birds are one of the ...

Tunas did not become large, fast and warm-blooded simply because an asteroid cleared the oceans of competing predators. Their defining traits appeared separately over tens of millions of years, ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The mystery behind the origins of the dinosaurs may have been given a ...

Add Yahoo as a preferred source to see more of our stories on Google. One of the more fascinating features of this tiny dinosaur is its skull. After a high-resolution CT scanning of skull bone ...

Oviraptorosaurs are weird dinosaurs that look a bit like flightless birds. But these ancient animals aren't just funny-looking fossils. As my team's new research published in Royal Society Open ...