Shortly after an asteroid smashed into Earth about 65.5 million years ago, obliterating much of life on Earth, an ancient sea turtle with a triangular-shaped head swam along the relatively arid shores ...

Paleontologists are constantly reminding themselves of the incompleteness of the fossil record. What has been preserved is only a small fraction of all the organisms and environments that have ever ...

New research suggests early dinosaurs laid eggs with soft shells, and mosasaurs—gigantic marine reptiles—did so, too, laying soft-shelled eggs of massive proportions. Birds and crocodiles lay eggs ...

A re-created Prognathodon kianda skull in the "Sea Monsters Unearthed" exhibit on Oct. 23, 2018 at the Smithsonian National Museum of Natural History in Washington, D.C. The exhibit features Angolan ...

WASHINGTON (Reuters) - Scientists have unearthed fossils of a large meat-eating dinosaur that stalked northern Italy 198 million years ago that was remarkable both in life and in death. The ...

Researchers have captured the mysterious bluntnose sixgill shark on film, a creature that has been on Earth since before the dinosaurs. Described as "perfectly efficient" by the team from OceanX and ...

Leatherback sea turtles are the biggest sea turtle species, which can weigh over 1 ton, but they are also one of the most threatened.