20 Mind-Boggling Discoveries From The Deepest Depths Of The Ocean

Image: Sebnem Coskun/Anadolu Agency via Getty Images

Compared to life on the surface, scientists know extraordinarily little about the deepest depths of the sea. In fact, we’ve actually explored and mapped less than 20 percent of the world’s oceans, despite the fact they cover more than two-thirds of the planet. As researchers continue to traverse new depths, then, they’re constantly making mind-blowing discoveries – from long-lost cities to incredible new species.