Deep-sea mining could unleash clouds of debris that threaten a mysterious, vital ecosystem we barely understand.

As the federal government rolls back fishing restrictions in the Pacific Remote Islands, California is reviewing its network ...

Whales can also help cycle nutrients in the ocean when they disturb the seabed as they feed. Gray whales ( Eschrichtius ...

An outbreak of domoic acid poisoning caused by an algae bloom in Southern California has sickened and killed dolphins, sea ...

An iridescent blanket octopus shows off its rainbow-colored cape in a rare new video that will leave you awe-struck.

How might these changes affect fish life in the Indian Ocean? A team of researchers tried to answer this question by looking at what happened in the deep past, through evidence left behind in ...

Pockets of water exist that are so salty they behave more like dense syrup than seawater. These deep, hidden lakes are called ...

Some of the animals “likely arrived during recent El Niño phenomena” when ocean currents “temporarily reversed” direction, ...

Surprising footage reveals parasites attached to the head of a deep-sea fish. These crustaceans, visible in a video shared by ...

While it may be annoying to beachgoers and swimmers, it could be good for marine life and people who fish ... The Sargasso Sea is a vast patch of the Atlantic Ocean named after the free-floating ...

One by one, the four California sea lions slid out of their crates and into the ocean. As the SeaWorld San Diego rescue boat ...