Citizen scientist and underwater filmmaker drops US$400/£300 Insta360 and DIY camera rig off the coast of Indonesia, and ...

Biologists with the Monterey Bay Aquarium Research Institute filmed a baby glass squid floating 1,558 feet underwater in Monterey Bay.

Sleeper sharks live extraordinarily long lives and can thrive in near-freezing ocean temperatures near Earth's poles.

An ungainly barrel of a shark cruising languidly over a seabed far too deep for the sun’s rays to illuminate was an unexpected sight. Many experts had thought sharks didn’t exist in the frigid waters ...

Sharks are ancient creatures—even older than land dinosaurs —and they’ve evolved to swim in almost all the world’s ocean waters. Still, many scientists suspected that the animals didn’t live in ...

Cities are rapidly becoming the defining residential space of human life. Over 55% of the global population lived in urban ...

Far beneath the Atlantic Ocean, about 1,000 kilometers off Portugal’s coast, lies a colossal underwater canyon system that dwarfs even the Grand Canyon. Known as the King’s Trough Complex, this ...

Biologists with the Monterey Bay Aquarium Research Institute filmed a baby glass squid floating 1,558 feet underwater in Monterey Bay.

A collection of honored images from this year’s competition celebrating “photography beneath the surface of the ocean, lakes, rivers and even swimming pools” ...