In the last ten years, at least 15 species have officially checked out, never to be seen again. It's ironic to think how ...

Picture an ocean world so deep and dark it feels like another planet—where creatures glow and life survives under crushing pressure.

Filter-feeding fish ingest a deadly algal neurotoxin called domoic acid and are then eaten by sea lions, seals and dolphins.

For the first time, a group of killer whales has been documented preying upon a prickly shark, a rare deep-sea dweller, according to a study published on March 20 in the journal Frontiers in Fish ...

Sea lions and other ocean mammals in Southern California are falling victim to a poisoning event that a local expert calls ...

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

As the toxin builds up in their system, it is causing all sorts of different issues, from disorientation to seizures, and ...

During calving season, the whales migrate south to give birth in the warmer waters off the Carolinas, Georgia and Florida, according to the National Oceanic and Atmospheric Administration. Fewer than ...

Dozens of sea lions and dolphins are suffering from domoic acid poisoning, which can make them dangerously aggressive and ...

Domoic acid poisoning is stranding marine mammals as warnings are issued to beachgoers of the threat posed by animals that ...

Artists transform marine debris into art, educating national park visitors in the process.