Gulper Eel: Known for its large mouth that can open wide to swallow prey much larger than itself, the gulper eel, or pelican eel, lives in the depths of the Atlantic and Pacific Oceans.
Dumbo Octopus: Named for its ear-like fins that resemble the Disney character Dumbo, this small, deep-sea octopus inhabits depths of up to 13,000 feet. Its unique fins help it glide through the water.
Fangtooth Fish: This deep-sea predator has large, fang-like teeth and lives at depths of up to 16,000 feet. Despite its fearsome appearance, it is relatively small, growing up to about 6 inches long.
Vampire Squid: With its dark red color and webbing that connects its arms, the vampire squid can appear quite menacing. It lives in the oxygen-minimum zones of the deep ocean, up to 3,000 feet deep, and has bioluminescent organs that can produce disorienting flashes of light.
Anglerfish: Female anglerfish have a bioluminescent lure that protrudes from their head to attract prey in the dark depths of the ocean. They inhabit depths of up to 6,600 feet and are known for their eerie, toothy appearance.
Giant Isopod: Resembling a large, underwater pill bug, the giant isopod can grow up to 14 inches long and lives at depths of up to 7,020 feet.
Barreleye Fish: This deep-sea fish has a transparent head that allows it to look upward through its skull. Living at depths of up to 2,600 feet, its tubular eyes can rotate to spot prey above.