A recent scientific study shows that sand tiger shark babies eat their litter mates in the womb in the attempt to be the embryo that is ultimately born. Melissa Block speaks with study author ...

This sort of cannibalism is unusual in sharks, and it gets weirder: once the sand tiger sharks are finishing eating their brothers and sisters, they turn to their mother's unfertilized eggs.

Sand tiger sharks, otherwise known as ragged-tooth sharks and grey nurse sharks, tend to eat herrings, eels, squids, crabs and lobsters, among other animals. And no, humans aren't on the list.

Sand Tiger Sharks cannibalize their half-siblings in the womb before birth, because it makes them larger when born and protects mom from dangerous suitors. Business Insider Subscribe Newsletters ...

For a sand tiger shark embryo, the uterine experience is not so much “safe and nurturing” as it is “Hunger Games” arena. In each of a pregnant sand tiger shark’s two uteri, several egg ...

Sand tiger sharks are known for having two uteri. In each one, a female shark will have between 16 and 23 fertilized eggs. But not long after they develop their teeth, the biggest and most ...

Experts think that shark-on-shark attacks such as these are more common than previously thought. A shoal of 50,000 sardines swim around a sand tiger shark at the Hakkeijima Sea Paradise Aquarium ...

As the Fourth of July holiday approaches and families are planning beach time, some people on Long Island have lingering ...

Aquarium sand tiger shark with whitetip reef shark in its jaws; photo courtesy Aqua World Typically at aquariums, the display animals are fed so regularly that they do not try eating one another.

In what was likely a turf war at a Seoul aquarium, a female sand tiger shark has eaten a male banded hound shark. It took the 8-year-old female 21 hours to eat the 5-year-old male inside a tank at ...

Shark was on the menu last week for a large female sand tiger shark in Seoul’s COEX Aquarium. The creature, more than seven feet long, chowed down on her smaller tank mate, devouring the banded ...