Dinosaurs

Paleontologists have isolated cartilage cells from an exceptionally well-preserved dinosaur fossil. They still contain traces of biomolecules, and the scientists were even able to tell which stage of the natural cycle specific cells were in at death.

Your chance to own one of the most iconic dinosaurs is about to come up – provided you have a spare few million and an empty ballroom on hand. The largest known specimen of Triceratops, nicknamed “Big John,” will go up for auction in October.

Paleontologists have discovered the largest known flying reptile that ever took to the Australian skies. Named Thapunngaka shawi, this “fearsome dragon” sported a 7-m (23-ft) wingspan and a jaw full of awful jagged teeth.

About 66 million years ago, a gigantic object crashed into the Earth, triggering a mass extinction that took out the dinosaurs. Now, scientists say they’ve traced the culprit back to its point of origin, identifying it as a “dark primitive asteroid.”

Around 66 million years ago, a gigantic asteroid smashed into the Earth and ended the reign of the dinosaurs. Now, researchers have discovered direct evidence of this cataclysm – fossilized “megaripples” from the tsunamis that immediately followed.

All walking animals have something in common – their preferred walking speed is largely determined by what's known as "resonance." Bearing this in mind, scientists have calculated what may have been the default walking speed of Tyrannosaurus rex.

It’s easy to assume tyrannosaurs didn’t need much help bringing down prey. But contrary to the popular image of these predators being lone hunters, new analysis of a mass grave site adds to evidence that tyrannosaurs may have lived and hunted in packs.

Although adult stegosaurs reached lengths of up to 9 m (30 ft) they still started out as small as a cat, if a recently-found footprint is anything to go by. And what's more, they may have walked differently as babies.

Pterosaurs included the largest flying animals ever, and a new study has uncovered biological secrets that helped them grow so large. CT scans revealed that the neck vertebrae of giant pterosaurs had a supporting structure unlike any other animal.

It's a common view that opposable thumbs are a key feature that distinguishes us from most other species, but a flying reptile that clambered through the trees 160 million years ago isn't one of them according to analysis of a newly discovered species.

While we've seen fossilized dinosaur eggs and embryos before, paleontologists have now discovered an unprecedented three-for-one – a fossilized dinosaur parent sitting on a nest of eggs, in which embryos are present.

Researchers have identified the oldest known fossils of primates, dating them to 65.9 million years ago. That’s just after one of Earth’s biggest mass extinction events, and it suggests that the ancestor of all primates lived alongside the dinosaurs.