It looked like a dinosaur , walked like a dinosaur, and ate like, well, some dinosaurs, but a newly discovered species of archosaur, which lived 240 million years ago, was not a dinosaur. [More]

An extraordinary set of fossils recovered from Cretaceous period rocks in western India has offered a rare glimpse into a baby dinosaur's first--and last--day on Earth about 67 million years ago. The frightful scene, fossilized by a rapid flow of debris, reveals a titanosaur hatchling's unlikely predator--a snake. [More]

An extraordinary set of fossils recovered from Cretaceous period rocks in western India has offered a rare glimpse into a baby dinosaur's first--and last--day on Earth about 67 million years ago. The frightful scene, fossilized by a rapid flow of debris, reveals a titanosaur hatchling's unlikely predator--a snake. [More]

An extraordinary set of fossils recovered from Cretaceous period rocks in western India has offered a rare glimpse into a baby dinosaur's first--and last--day on Earth about 67 million years ago. The frightful scene, fossilized by a rapid flow of debris, reveals a titanosaur hatchling's unlikely predator--a snake. [More]

An extraordinary set of fossils recovered from Cretaceous period rocks in western India has offered a rare glimpse into a baby dinosaur's first--and last--day on Earth about 67 million years ago. The frightful scene, fossilized by a rapid flow of debris, reveals a titanosaur hatchling's unlikely predator--a snake. [More]

Last week, researchers announced that they had been able to place, for the first time, original colors on a dinosaur --painting in striking stripes on Sinosauropteryx 's tail based on new evidence of pigment particles. Today, another team reports that they have decoded the colors of a different dino from head to tail. [More]

The dinosaur group that over the eons has brought us Tyrannosaurus rex and modern birds just got a new member in one of its more perplexing, birdlike families, the alvarezsauridae. [More]

A fierce, feathered raptor might have been terrifying enough to small dinosaurs, lizards, birds and mammals living 128 million years ago, but add venom to its arsenal and the threat would be paralyzing--literally. [More]

The earliest stages of dinosaur evolution remain buried under eons of rock, but the discovery of a new primitive carnivore fossil in the U.S. Southwest promises to dispel some of the debate about how these beasts spread across the globe--and about the origins of the group that eventually led to modern birds . [More]