The blind shark is a sluggish, nocturnal shark that hides in caves and under ledges during the day, and comes out at night to feed (2). Its diet is composed of small fishes, crabs, shrimps, cuttlefish, squid and sea anemones (2) (3). Blind sharks are viviparous, but there no placenta is formed (4). Seven to eight pups are produced in each litter, which are born in the summer, around November (3). It is thought that blind sharks produce a litter each year (5).