If you're looking for some of the creepiest deep sea creatures on the planet, look no further than the Mariana Trench, located in the Pacific Ocean directly east of the Philippines. Neither these scary-looking sea monsters nor the trench itself — largely considered one of the creepiest places in the ocean — are for the faint of heart.
The deepest part of any of Earth's oceans, the Mariana Trench is five times longer than the Grand Canyon and would be 7,000 feet deeper than Mount Everest if the peak was submerged there. There is no sunlight at 3,280 feet below the surface; the pressure at the bottom is 1,000 times greater than at sea level; and the temperature hovers just above freezing. Any living animals swimming in its murky depths require specialized adaptations, such as bioluminescence — AKA the ability to glow in the dark — or glowing photophores, bodily organs that emit light, to survive.
The creatures that live in the Mariana Trench have adapted, but they've adopted terrifying appearances in exchange. Scientists and filmmakers continue to study the largely unexplored area, but who are these creepy Mariana Trench creatures, and what makes them special?