Nighttime underwater photos show fish hanging out with jellyfish and anemones — perhaps seeking their protection.

Earth's vast oceanic biodiversity remains largely unexplored, with only a fraction of an estimated two million total living ...

His team documented four families of young fish (filefish, driftfish, pomfrets, and jacks) each paired with larval tube ...

Learn how tracking data shows that manta rays plunge more than 4,000 feet down in the deep sea not to hunt, but to find their bearings and travel across the open ocean.

Photos taken by blackwater divers offered a new glimpse into the early life stages of marine fishes and their interactions ...

Heat-trapping methane may be best known for the dangers it poses to humans and Earth’s atmosphere, but in the dark depths of the ocean, the greenhouse gas is a nourishing meal for some of the world’s ...

When most of us picture the ocean, we imagine turquoise waves, colorful reefs, and shoals of darting fish. But that’s only the surface. Venture deeper, far below the last reach of sunlight, and you ...

A massive global collaboration has tracked over 12,000 marine animals from whales to turtles to create one of the most detailed movement maps of ocean giants ever assembled. The project, MegaMove, ...

A rendering of what the $750,000 research and conservation facility will look like upon completion next year. Credit: Courtesy of San Antonio Zoo With coral reefs dying at an alarming rate, the ...