Embryos of other sharks survive by feeding on their smaller siblings. This is called intrauterine cannibalism or sometimes as embryophagy ('embryo eating'). This is known to occur in sand tiger sharks ...

Some sharks lay egg cases with developing embryos inside ... while probing the uterus of a pregnant sand tiger shark, was bitten by an unborn pup. The strongest shark bite: The greatest force ...

Sand tiger sharks eat their siblings in the womb; a phenomenon known as embryonic cannibalism or embryophagy. When the first embryo in each uterus reaches a certain size it consumes all its siblings.

OARAI, Ibaraki Prefecture--A sand tiger shark was born at the Aqua World Ibaraki Prefectural Oarai Aquarium here, the first successful breeding of the species in Japan. Only four other aquariums ...

Sand tiger sharks, also known as grey nurse sharks ... two-year reproductive cycle. While up to 12 embryos develop during the initial reproductive period, only one or two pups are born due ...