Eye-brain connection humans first evolved in fish 100 MILLION years earlier than previously thought

The sophisticated network of nerves connecting our eyes to our brains evolved 100 million years earlier than previously thought – a discovery that'literally changes the textbook.' A team of international scientists found the connection scheme was already present in the ancient gar fish that lived 450 million years ago, which means the eye-brain connection pre-dates animals living on land. The long-held theory suggests the connection first evolved in terrestrial creatures and, from there, carried on into humans where scientists believe it helps with our depth perception and 3D vision. Michigan State University's Ingo Braasch said: 'Modern fish, they don't have this type of eye-brain connection.' 'That's one of the reasons that people thought it was a new thing in tetrapods.' A team of international scientists found the connection scheme was already present in the ancient gar fish that lived 450 million years ago, which means the eye-brain connection pre-dates animals living on land.