New fossil evidence from China suggests that some of our vertebrate ancestors had four eyes. The study, published in Nature, ...

A cheetah pouncing on a gazelle. A bear snatching a fish out of the water with its claws. And the most dangerous predator of them all? A human and their pet bird dancing to “Gangnam Style.” Scientists ...

Scientists have recreated the most ancient vertebrate known, the myllokunmingiid. The creature had four camera-type eyes.

The Cambrian fossil record indicates that most animal phyla had diversified and inhabited the Earth’s oceans approximately 518 million years ago. But even though chordates—the group that includes ...

A new study, led by the University of Vienna and the Alfred Wegener Institute in Bremerhaven, shows how the eyes of adult marine bristleworms continue to grow throughout life—driven by a ring of ...

Scientists found that adult bristleworm eyes grow continuously thanks to a rim of neural stem cells similar to those in vertebrate eyes. This growth is surprisingly regulated by environmental light ...