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

CT scans, UV light, and careful prep work uncovered feathers that may have given the ancient dinosaur liftoff.

New insights into the flying capabilities of a nonbird dinosaur were drawn from an unusually well-preserved specimen known as ...

But Mosura was different. Instead of the familiar streamlined body with flaps and claws, this little predator had something ...

Today, tegus are considered invasive creatures in Florida, but a new paper suggests they’ve lived in the southeastern United ...

Tegus, once thought to be newcomers, actually roamed ancient Georgia during a global warm spell millions of years ago — a ...