Add Yahoo as a preferred source to see more of our stories on Google. LOS ANGELES — Daniel Diemer was destined to play the one-eyed cyclops, Tyson, in Season 2 of "Percy Jackson and the Olympians." ...

Collared Iguana (Oplurus cuvieri) with pineal gland by Daniel Goeleven New research that challenges thinking on the evolution of human brains suggests ...

Researchers found that vertebrate eyes - including humans’ - began as brain tissue from a single ancestral light-sensing organ.

Adjust the colors to reduce glare and give your eyes a break. Use one of the services below to sign in to PBS: You've just tried to add this video to My List. But first, we need you to sign in to PBS ...

The legend of the Cyclops — the towering, one-eyed giants of Greek mythology — has long captured the imagination of storytellers.

New research by University of Sussex suggests we descended from a small one-eyed Cyclops creature around 600 million years ...