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

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.

Clouded leopards might look like your average big cat at first glance, but they’re hiding a prehistoric secret. In this video, we take a closer look at why clouded leopards are often called modern-day ...

Palaeontologists have discovered a remarkable new 506-million-year-old predator from the Burgess Shale of Canada. Mosura fentoni was about the size of your index finger and had three eyes, spiny ...

The mosura fentoni was about the size of an index finger and had three eyes, jointed, spiny claws, a circular mouth with teeth, and a body with swimming fins on the sides. A group of paleontologists ...