Daily Mail News – Science & Tech
By CHRIS MELORE, US DEPUTY SCIENCE EDITOR
Published: 10:52 EDT, 25 May 2026 | Updated: 12:16 EDT, 25 May 2026
Scientists studying the mysterious ‘third eye’ buried in the middle of the human head say it plays a key role after millions of years of evolution and know how it formed.
Researchers from the UK and Sweden called this ancient organ the composite ancestral median eye, and they now believe the species humans evolved from relied on this after losing their two side orbs roughly 500 million years ago.
According to their study, these ancient non-vertebrate species, meaning creatures without a backbone, burrowed underground and lost the use of their normal eyes, leaving them to depend on this central organ for sensing light.
Super Sleuth
