Have you ever wished for eyes in the back of your head? How about your rear end?

Researchers at the University of Adelaide in Australia have been studying “seeing” tails among several species of Australian sea snakes. That includes the olive sea snake, Aipysurus laevis, pictured here.

Their long tails make a tempting target for predators, but evolution has endowed at least three species of these sea snakes with a neat trick: the skin on their tails can sense light.

The scientists us