You have to go really, really deep to even have a chance at spotting a goblin shark in its natural habitat. kittisun kittayacharoenpong / Getty Images ...

Goblin shark (Mitsukurina owstoni ... rivers and estuaries of northern Australia and New Guinea. Its unique adaptation to both freshwater and marine environments, combined with its limited range ...

Its appearance is otherworldly enough to earn it the common name of goblin shark or elfin shark, but its strange attributes are actually evolutionary adaptations. (The same goes for its wide-mouthed ...