Scientists are narrowing down the type of space rock that caused the mass extinction at the end of the Cretaceous period, and ...

A bird feather found in fossilized dinosaur poop is the best-preserved feather ever recovered by paleontologists from ...

About 66 million years ago, the asteroid that ended the age of the dinosaurs paved the way for a spectacular expansion of new ...

A lucky find of fossilized dinosaur poop in eastern Montana gave scientists their first look at which birds may have survived ...

Yale University ecologists reveal a lizard lineage that rode out the dinosaur-killing asteroid event with unexpected evolutionary survival traits. Night lizards (family Xantusiidae) survived the ...

An asteroid strike 66 million years ago caused millions of species to go extinct—including many mollusks. By studying the impacts of this ancient event, scientists hope to ensure that mussels, ...

Add Yahoo as a preferred source to see more of our stories on Google. On the final day of the Cretaceous period, some 66 million years ago, Earth was teeming with a dazzling variety of dinosaurs. In ...

Add Yahoo as a preferred source to see more of our stories on Google. Tuna evolution after asteroid extinction unfolded slowly, as size and warm-blooded traits appeared millions of years apart.

Previous studies have posited that the mass extinction that wiped the dinosaurs off the face of the Earth was caused by the release of large volumes of sulfur from rocks within the Chicxulub impact ...

A quarter of a billion years ago, long before dinosaurs or mammals evolved, the predator Dinogorgon, whose skull is shown ...