Scientists now say that's almost precisely what happened to the dinosaurs, on a much bigger scale: the asteroid that hit ...

The creature supposedly stood roughly the size of a small dog, weighing around 10 pounds, with a tail that stretched a meter ...

A vast, ancient slab of seafloor plunged beneath the Pacific Ocean and has hovered in Earth’s mantle for more than 120 ...

Evidence suggests that “the precursors to the dinosaurs and pterosaurs were much more diverse than previously imagined.” ...

In western North America during the twilight of the dinosaur age, the unquestioned ruler was Tyrannosaurus rex, one of the ...

An "agile and lightweight" predecessor to the dinosaurs - dating back 237 million years - has been discovered in Brazil.

Scientists in Brazil announced the discovery of one of the world's oldest fossils believed to belong to an ancient reptile ...

Scientists have revealed images of a second massive asteroid impact called Nadir Crater buried 300 meters under the ocean ...

The end of non-avian dinosaur’s time on Earth is often depicted as one big, knockout blow delivered by the cataclysmic ...

After the extinction of dinosaurs came the age of mammals. A new book brings readers into this world with well-researched species profiles by Aaron Woodruff, collection manager for vertebrate ...

Scientists now say that's almost precisely what happened to the dinosaurs, on a much bigger scale: the asteroid that hit Chicxulub, Mexico, is still credited with killing the dinosaurs.