Your Eyes Came From a Cyclops Creature 600 Million Years Ago!

Scientists discovered that you and all animals with backbones are descendants of a weird, one-eyed creature that lived hundreds of millions of years ago! This cyclops-like worm had a single light-sensing eye on top of its head, and over millions of years, it evolved into the two amazing eyes you use to see right now. Nature basically recycled an ancient alien design to create your vision—how cool is that?