A new study reveals there were multiple species of Deinosuchus, the giant crocodylians that lived 75 million years ago. They were among the largest predators in the ecosystem and ate dinosaurs.
Scientists have identified an aggressive bone cancer — for the first time — in the fibula of a dinosaur that lived 76 to 77 million years ago. The diagnosis sheds new light on dinosaurs and disease.
A new study of dinosaur eggs, as well as a football-size egg from Antarctica, shows how some ancient creatures relied on soft shells rather than hard ones.
What do you imagine an ancient croc snacking on? Maybe a fish or a bird? For some relatives of modern crocodiles, a safer guess would be a big bunch of flowers.
It was the biggest extinction in Earth's history. A new Smithsonian exhibit notes that some of the same things that killed over 90% of ocean species 250 million years ago are happening now.
The scientists think when this new dinosaur was alive, it was the largest creature ever to have walked the Earth. And unlike the lumbering creatures that came later, it could pop up on its hind legs.
Modern birds are dinosaurs without toothy jaws, and with bigger brains. Newly published research fills in some of the missing links in their evolution.
The tick was with a feather from a dinosaur that lived in the Cretaceous Period. Modern ticks love to bite mammals, and scientists have long wondered what the tiny vampires ate millions of years ago.