An expedition to the deepest place on this planet is set for later this month, in a custom-built one-man sub to be helmed by Hollywood director James Cameron. The vessel Deepsea Challenge will dive to the deepest part of the Mariana Trench, seven miles into the Challenger Deep, where Cameron will shoot 3-D video.
Ever since the fish's discovery in 1939, scientists have believed that the tube-shaped eyes of Macropinna microstoma, commonly called the "barreleye," were fixed in place, limiting its vision to whatever was directly overhead. Recent research from Monterey Bay Aquarium Research Institute (MBARI) proves this theory wrong: in reality, this crazy fish can rotate its eyes from an overhead view, which helps it locate prey swimming above, to the front of its face. This helps explain how the fish is able to actually capture the prey with its tiny mouth.