Deep Sea

inactive hydrothermal vent

Life Finds a Way, Even on Inactive Hydrothermal Vents

In the darkness of the deep sea, animals flourish on hydrothermal vents that have gone cold.

Latest in Deep Sea
elephant seal underwater
Are There Plenty of Fish in the Sea? Ask an Elephant Seal

Counting deep-sea fish is difficult, but elephant seals can make it easier.

Photograph by Galih/Alamy Stock Photo
The Three-Way Race to Exploit Deep-Sea Life

The genetic bounty of the deep sea is being patented by a handful of multinationals.

Header image for Bringing out the Dead - Deep sea octopus Benthoctopus johnstoniana
Bringing out the Dead

By sinking a wide array of carcasses into the deep ocean and studying what turns up when they fall, scientists are learning about some of the world’s most exotic scavengers and the roles they play in the darkness.

glowing sucker octopus (Stauroteuthis syrtensis)
Sucker Deception

Mesmerizing bioluminescence is a rare trait—and a clever lure—for this deep-sea drifter.

Hundreds of resident brown boobies (Sula leucogaster) circle above Saint Peter and Saint Paul Archipelago, a tiny set of islets in the middle of the Atlantic Ocean. Photograph by Novus Select
Life on the Rocks

To learn how life on Earth first began—and how it might evolve elsewhere in the universe—scientists are probing rocks deep beneath the ocean's surface.

Like many other deep-sea fishes, the Sloan’s viperfish (Chauliodus sloani) uses light-producing cells called photophores to lure unsuspecting prey toward its mouth. Once it catches its victim, the viperfish’s hinged teeth rotate inward to trap the animal and force it inescapably down the predator’s gullet.
Aliens of the Deep

From transparent bodies and glowing appendages to motion-sensing cells, these denizens of the deep are highly adapted for life in a world without light.