A fly in your ear

时间:2019-03-07 03:08:15166网络整理admin

HEARING aids with more than one microphone try to pick out where sounds are coming from, to let users hear more clearly. They work by detecting tiny differences in the times sounds arrive—but when the mikes have to be close enough together to fit in the ear, results are poor. Now Andrew Mason and his colleagues from Cornell University in New York have discovered that a tiny parasitic fly called Ormia ochracea can locate sounds as accurately as humans, even though its ears are only half a millimetre apart (Nature, vol 410,