Meet Mosura fentoni, a bizarre 506-million-year-old "sea-moth" with three eyes, claws, and an abdomen full of gills.

Red, blue, green, even purple--animal blood comes in a wide range of colors! Check out these 10 amazing types of animals with blue blood.

Paleontologists have discovered that a three-eyed sea moth predator lived on Earth half a billion years ago with evidence ...

Paleontologists at the Manitoba Museum and Royal Ontario Museum (ROM) have discovered a remarkable new 506-million-year-old predator from the Burgess Shale of Canada. The results are announced in a ...

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