About 600 million years ago, the continents wandered Earth, yet to settle into their current positions. Their locations during the Ediacaran (as this time is called) have been tough for scientists to ...

Long before complex vision systems evolved in animals, there was a simple, one-eyed creature whose unique adaptation would shape the eyes of all vertebrates, including humans. This ancestor, which ...

It's easy to take our eyes for granted. But our recent research shows they took an incredible evolutionary journey to reach their current familiar form. It has long been known that our (vertebrate) ...

A bizarre, cyclops-like creature from nearly 600 million years ago may hold the key to how your eyes—and even your sleep cycle—evolved. Scientists have discovered that all vertebrates, including ...