Picture this: the next time you see a sparrow hopping along a sidewalk or a hawk soaring across a blue sky, you’re witnessing ...

Imagine a crocodile built like a greyhound—that's a sebecid. Standing tall, with some species reaching 20 feet in length, ...

A new study suggests the platypus and echidna — the only egg-laying mammals — had a water-dwelling ancestor. The finding ...

Fossils of Tiktaalik roseae blended fins with hints of limbs and sported a flat head suited for peering above the waterline.

Fossils of Oculudentavis found encased in amber in Myanmar in 2020 have confounded scientists from around the world.