SEOUL, SOUTH KOREA - JANUARY 29: In this handout photo released by the COEX Aquarium, Sand tiger shark with a Banded hound shark in its mouth at COEX Aquarium on January 29, 2016 in Seoul, South Korea. The female sand tiger shark measuring 7.2 ft, ate a male banded hound shark 3.9 ft at the COEX Aquarium. According to the statement by the aquarium PR, sharks sometimes bite other sharks out of astonishment when they bump into them in their own territory. (Photo by COEX Aquarium via Getty Images)
