Discover 10 amazing birds that swim as well as—or better than—fish. From penguins to puffins, meet the avian experts of the underwater world.

Dive into the world of underwater exploration, and you’ll find a new player making waves: HERO-BLUE. This isn’t your average remotely operated vehicle (ROV); it’s an innovative robot designed to ...

Sea snakes appear more skillful under water than believed. New research reveals unique dive styles, energy-saving glides, and ...

Scientists have discovered that colonies of gelatinous sea animals swim through the ocean in giant corkscrew shapes using coordinated jet propulsion, an unusual kind of locomotion that could inspire ...

Rare footage shows a "Dumbo" octopus swimming near a submersible in the deep ocean. The animal was spotted more than 5,500 feet underwater by a research expedition. The Ocean Exploration Trust's ...

Researchers have for the first time closely tracked the fine-scale diving behavior of two species of sea snakes that forage ...

One of the largest migrations on Earth happens in the dark ocean every night, as tiny jelly-like organisms work together to emerge from the deep sea to the surface. Biologists think the ocean ...

A climate reporter wanted to follow scientists into the Mediterranean Sea. First, he had to learn to scuba dive.

Dive into the mesmerizing underwater world in stunning 4K UHD cinematic footage. Watch sea lions swim gracefully through ...

Miami Beach is a barrier island, and healthy coral reefs act as natural defenses by breaking up waves, helping to reduce ...