Sharks are known to stalk and sniff out prey before they attack.
But all this newly discovered shark species has to do is glow in the dark, and the prey comes to them.
According to the paper, the shark secretes a glowing fluid from a tiny pocket gland near its front fins.
It's thought to help attract prey, who are drawn to the glow while the tiny predator, practically invisible from below, stealthily attacks.
NOAA estimates about 90% of animals that live in open water are bioluminescent, though research on deep sea creatures is scant.
A dweller of the deep sea, the black seadevil lures prey with a bioluminescent appendage.
True to its name, it lures prey toward its jaws by dangling a bioluminescent spine from the top of its head, says the Monterey Bay Aquarium Research Institute More charmingly, hordes of bioluminescent plankton turn oceans neon blue at night, a response that startles predators ready to munch on them.