A riotous photography collection from a recent underwater mission off the coast of Chile shows new and fascinating deep-sea ...

Researchers took advantage of a rare chance to explore a new expanse of seafloor exposed by the breakup of an Antarctic ice ...

Imagine a world where the oxygen you need changes dramatically between day and night. Your world shifts from being rich in oxygen (oxic) in the day, so you have energy to hunt for food, to ...

A hidden ecosystem of giant sea spiders, octopuses, and other stunning sea creatures shows how life can flourish even when sealed off from the surface by a thick layer of ice.

For decades, the coelacanthexisted only in fossil records—until one turned up in a South African fishing net. It was 1938 ...