At least 539 manatees died in Florida waters by mid-March, only 100 shy of the number that died in 2020. Cold water and lack of food availability are among the potential causes.

The bioluminescent species include the blackbelly lanternshark, southern lanternshark and the kitefin shark, the largest luminous vertebrate ever discovered.

The best time to swim with whales in Tonga, how to get there, rules, and more.

Nominated for Best Documentary, the Netflix film follows the enriching relationship between a man and an octopus, erasing the line between humanity and nature.

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Recordings of fin whale songs let a scientist measure the thickness and compactness of layers of Earth’s crust up to about 10,000 feet below the seafloor.

The biomimetic design houses an underwater glass wall so visitors and scientists can see marine creatures in their natural habitat.

Researchers boring into an Antarctic ice shelf found a boulder coated in life like sponges, the first of its kind ever recorded, in an environment where larger life was thought to not exist.

These four critical marine habitats—sea grass, sand, sargassum, mangroves—nurture ocean life as we know it.