Gone in a blink

时间:2019-03-07 09:07:05166网络整理admin

DEEP-SEA shrimps can perform a vanishing act by blinking, marine biologists in Britain have found. Many shrimps in the dim depths of the ocean have reflective eyes, like cats, to make use of every last photon. But these “headlights” can also betray the animal’s position to potential predators. Now Peter Shelton of the University of Leicester and his colleagues have found that three species of deep-water shrimps have developed a trick to avoid this. As the researchers will report in the journal Crustacean Issues, when the shrimps are startled they begin swimming backwards and hide the telltale shine of their eyes in a groove on the front of their heads. “All the species close their eyes while swimming backwards,