At a whopping 10928 meters (nearly 7 miles!!) the Challenger Deep is the deepest point we know of in the oceans. This point lies at the southern end of the Mariana Trench, the deepest ocean trench in the world. This region of the ocean, known as the hadal zone, is one of the least explored parts of our planet. How do animals from the hadal zone live in such an extreme place? Not only is it utterly black at these depths (sunlight stopped trickling down all the way up at 1000 meters), but the … [Read more...] about Life in Hell: Five Bizarre Animals from the Hadal Zone