A newly described species from the Burgess Shale had three eyes, clawed limbs, and a tail full of gills—plus internal organs ...

It turns out that preservation of these structures is widespread, confirming the ancient origin of this type of circulatory ...

Researchers uncover a new tegu species from a fossil vertebra in Florida, revealing ancient lizards once roamed North America ...

Deep inside a remote cave system, nearly three miles from the entrance, we stumbled upon something incredible – the fossilized remains of an ancient snake. In this video, we take you through the ...

Fossilization favors larger, protein-rich animals because they create oxygen-poor conditions that slow decay, helping explain ...

The fossil, Shishania aculeata, was originally thought to be an early mollusc, a group that includes snails and clams.

Before humans ever appeared and not long after the dinosaurs went extinct, a new giant rose to the top of the food chain. It didn’t fly or roar– it slithered, and it did so with incredible ...

An unexpected discovery in Antarctica is challenging long-standing scientific assumptions. A massive egg fossil, recently ...

“The fossil evidence suggests dinosaurs had at least small parasites,” said Jarzembowski. “Thorny-headed worms can be found ...