Sea lions wearing video-camera backpacks are helping scientists map uncharted regions of the seafloor. They found the ocean bed teeming with life.

Some 390 million years ago in the ancient ocean, marine animals began colonizing depths previously uninhabited. New research ...

This year’s marine heat waves and spiking ocean temperatures foretell big changes in the future for some of the largest fish in the sea, such as sharks, tunas and swordfish.

Study connects Earth’s first forests to an ocean oxygen rise that unlocked deep-sea habitats and spurred a wave of vertebrate ...

The ocean is heating up—in some places, faster than scientists once thought possible. For the fish, crustaceans and plankton ...

But we can stroll along a pretty Pacific-adjacent place that isn't usually open to the public, all while learning the finer points of plankton and pausing to ink, er, think about squids. That ...

There are many different habitats underwater. These include seagrass meadows, kelp forests, intertidal zone, estuary zone, reefs, and the pelagic zone. Find out more about these habitats. Science ...

As environmental challenges grow, underwater habitats gain momentum with DEEP's Vanguard, supporting short missions and Sentinel designed for 28-day stays at depth.

Off the western shores of Central and South America, waters in one spot reach 700 degrees thanks to hydrothermal jets. Scientists were surprised to find animals there.

Some 390 million years ago in the ancient ocean, marine animals began colonizing depths previously uninhabited. New research ...

This year’s marine heat waves and spiking ocean temperatures foretell big changes in the future for some of the largest fish in the sea, such as sharks, tunas and swordfish.