The ocean floor holds some of Earth’s most mysterious secrets, and while most of us imagine the deep sea as a dark, lifeless place, it’s actually home to ‘lost underwater cities’, in the form of ...

A real-life version of the lost underwater city of Atlantis exists — and no, it's not Venice. To see it, you'll have to travel to Turkey, and head to either the town of Halfeti or the island of Kekova ...

An octopus has more limbs than humans can fathom, each of which contains its own brain. With zillions of neurons tingling in its body, this surreal aquatic beast crawls on the sea grass, like a fancy ...