This was no ordinary expedition. It marked the first in-depth study of the geology, ocean conditions, and marine life beneath ...

A newly discovered arthropod fossil, Mosura fentoni, has preserved eyes, nerves, and blood vessels - a rare insight into ...

That effort is hitting a dead end on Capitol Hill: Republicans are warning the White House that it faces tough odds in their ...

Paleontologists have discovered that a three-eyed sea moth predator lived on Earth half a billion years ago with evidence found in one of the most fossil-rich areas of the world.

In other words, the appearance of reptiles—and by extension, the evolutionary branch that leads to humankind—gets pushed back ...

Most modern birds solved this issue by evolving shorter appendages to accompany their tertial feathers. But even though ...

New fossilized tracks made by an ancient reptile indicate that these animals evolved tens of millions of years sooner than ...

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

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

New discoveries of fossil clawed footprints from Australia, published in Nature, push the origin of reptiles back in time by ...

A report in the journal Nature estimates that the amniote tracks date to between 350 million and 359 million years ago.