How fruit flies' neurons spot tiny visual errors to keep them flying straight

PHYSorg
May 1, 2025, 9:56 am108 pts
When a fruit fly is navigating straight forward at high speed, why does it know that it's not straying off course? Because as long as the fly moves directly forward, the visual scene shifts from front to back in a near-perfect mirror image across both retinas—generating, in other words, a symmetrical visual…

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