EXCLUSIVE: Mark Witton also believes dinosaurs "may have been much smarter animals than we have given them credit for".

Though chimaeras also have cartilage skeletons, they lack the ferocious rows of regenerating teeth that sharks have. Instead, ...

About 95 million years ago, a juvenile crocodyliform nicknamed Elton lived in what is now southwest Montana at the edge of ...

Scientists discovered Agriodontosaurus helsbypetrae, a tiny ancient lizard with oversized teeth, changing the story of lizard ...

Spotted ratfish, or “ghost sharks,” have forehead teeth that help them grasp onto mates. It’s the first time teeth have been found outside of a mouth.

Polar bear meets grizzly bear. They hit it off and have babies. Enter the grolar bears. Or pizzly bears, as some like to call ...

Speedy megaraptor Joaquinraptor casali had big arms and claws like hedge trimmers that would have made T. rex's forelimbs look puny.

On a summer day in July 2025, UA Museums paleontologist Dr. John Friel was scanning the gravel bars of a Greene County creek when he stumbled on an unexpected prize. Buried among the river pebbles, he ...

Scientists unearthed a 242-million-year-old fossil, Agriodontosaurus helsbypetrae, in Devon, pushing back the origins of lepidosaurs. This reptile, the oldest known of its kind, challenges previous ...

Archaeologists already knew that adult Maya had tooth inlays, but this is some of the first evidence that children also had ...