This secretive native of both sides of the Caribbean—from Belize to the British Virgin Islands—hides out on ledges and in caves of reefs up to 140 feet below the surface of the sea. Although not being ...

Chilean devil rays swim in the Atlantic Ocean near the Azores. Reinhard Dirscherl / ullstein bild via Getty Images There’s only one word for it: indescribable. “It’s one of those awesome experiences ...

Almost all life in the ocean depends on the upper waters where sunlight filters in, known as the photic zone – but new research suggests this narrow window of valuable marine light is shrinking in ...

Rising human exploitation of the oceans is pushing ever further into regions that scientists increasingly suspect are full of conscious life. New research into creatures from sperm whales to octopuses ...

Cetaceans are among the most intelligent creatures in the ocean and many whales have used their big brains to develop cunning ...

WASHINGTON (AP) — Many animals can glow in the dark. Fireflies famously blink on summer evenings. But most animals that light up are found in the depths of the ocean. In a new study, scientists report ...

This story originally appeared in Hakai and is part of the Climate Desk collaboration. The ocean has a way of upending expectations. Four-story-high rogue waves peak and collapse without warning.

When we think of snow, we usually think of winter. But did you know that it is always snowing in the ocean? Read more about marine snow.

Ingesting just six pieces of rubber—each smaller than a pea—can all but seal a seabird’s fate, leaving it with a 90 percent chance of death. A 300-pound adult green sea turtle has about a 50 percent ...