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

Scientists say humans share ancestry with a tiny one eyed creature from 600 million years ago, and remnants of its “cyclops” eye may still exist deep inside our brains.

A widely popular idea in psychology and evolutionary science suggests that the distinctive look of the human eye—particularly the white area surrounding the iris—evolved to help us communicate ...

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