The goblin shark (above) is a rare, poorly known species of deep-sea shark. Sometimes called a “living fossil”, it is the only extant representative of the family Mitsukurinidae, a lineage some 125 million years old. This species looks unlike any other shark, with a long flattened snout, highly protrusible jaws containing prominent nail-like teeth, and pink coloration. Continue reading to see more strange creatures from the deep you won’t believe exist.

Bonus Video – Anglerfish

Anglerfishes are bony fishes named for their characteristic mode of predation, wherein a fleshy growth from the fish’s head acts as a lure like the one found in angling. Some deep-sea anglerfishes of the bathypelagic zone emit light from their escas to attract prey. This bioluminescence is a result of symbiosis with bacteria. Although the mechanism by which ceratioids harness them is unknown, the bacteria have been speculated to enter the esca from the seawater through small pores. Once within the esca, they can multiply until their density is such that their collective glow is very bright.