Dinosaurs

Back in 2021, we heard about a pterosaur that had a mouth full of big, sharp teeth. Well, scientists have now discovered a pterosaur that went to the other extreme, as it used over 400 small, hooked teeth to catch its prey.

It has long been known that some of the earliest mammals coexisted with the later-period dinosaurs. Now, for just the second time ever, scientists have documented fossil evidence of a dinosaur having actually eaten one of those mammals.

A new study has examined the diets of the earliest dinosaurs and found them to be carnivores, herbivores and omnivores. But surprisingly, the ancestors of many of the most famous herbivores – like Triceratops and Brachiosaurus – originally ate meat.

Around 66 million years ago a huge asteroid slammed into Earth and wiped out most life. Two new studies have identified evidence that the impact triggered global tsunamis almost a mile high and mega-earthquakes that rumbled for months afterwards.

Scientists have discovered a new crater in the seabed of the North Atlantic Ocean that seems to date to the end of the Cretaceous period. That suggests the extinction event that killed off the dinosaurs could have been triggered by multiple impacts.

Armored dinosaurs like Stegosaurus and Ankylosaurus were mostly big, bulky animals that walked on four legs, but paleontologists have now discovered a bizarre relative the size of a dog that strutted around on two legs.

The dinosaur king may yet retain its crown. Earlier this year a study proposed that the iconic Tyrannosaurus rex should be split into three distinct species, but a new analysis says there isn’t enough evidence for such a drastic shake-up.

It’s hard to find a cooler collectible than the skeleton of a long-dead predator. The latest to hit the auction block is a Gorgosaurus, a distant relative of T-rex, which will be offered for sale by Sotheby’s New York in its Natural History sale.

Paleontologists have described a new species of giant carnivorous dinosaur from a fairly complete skeleton in Patagonia. The discovery could help shed new light on the mystery of why such powerful predators had almost comically tiny arms.

In drawings or renderings of dinosaurs, we generally don't see the beasts sporting human-like belly buttons. The reptiles did have an equivalent to a navel, however, and scientists have recently discovered the first known fossilized example of one.

Dinosaurs sit at the crossroads between reptiles and birds, leading scientists to debate whether they were warm- or cold-blooded. A new study may have the answer for different dinosaurs by analyzing metabolic markers from their breath in their bones.

Paleontologists have discovered the largest raptor dinosaur ever found. The new species, known as Maip macrothorax, was a super predator of the megaraptor family that stalked the forests of Argentina some 70 million years ago.