> A new study shows that their rapid vision may be a result of their photoreceptors - specialised cells found in the retina - physically contracting in response

> A new study shows that their rapid vision may be a result of their photoreceptors - specialised cells found in the retina - physically contracting in response to light. The mechanical force then generates electrical responses that are sent to the brain much faster than, for example, in our own eyes, where responses are generated using traditional chemical messengers. https://phys.org/news/2012-10-eye-mystery-insight-flies-fastest.html https://phys.org/news/2012-10-eye-mystery-insight-flies-fast...