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 ...

Deep inside the human brain, a small gland in the middle of the forehead helps keep time. As darkness arrives, the pineal ...

Dhaka, July 26 -- Scientists have proposed that the ancestors of modern vertebrates, including humans, may have passed through a "cyclops-like" stage nearly 600 million years ago, with a primitive ...