Chameleons are known for their dazzling colours and hypnotic, swivelling eyes, but scientists have just uncovered a hidden secret behind how those eyes actually work. For centuries, researchers have ...

For more than two millennia, people have watched chameleons swivel their turreted eyes in different directions and wondered how such a small reptile pulls off a trick that seems to defy basic anatomy.

Chameleons’ extraordinary ability to move their eyes independently stems from a previously overlooked anatomical marvel: long, tightly coiled optic nerves hidden behind their bulging eyes. Modern CT ...