As adults, sand tiger sharks are known for being relatively non-aggressive. But as babies, these animals engage in a cannibalistic war with dozens of siblings in which only one survives. It's all part ...

Tail swishing elegantly, Fin slips by the algae-covered shipwreck with a school of fish companions unconcerned by the rows of sharp curved teeth jutting out of his mouth. Fin is one of dozens of sand ...