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

Humans can't sense their own oxygen levels, but seals can, and it makes diving longer and safer.

When he contacted the Channel Islands Marine and Wildlife Institute to report the incident, he said he was informed that ...

Toxic algae bloom is wreaking havoc on the Southern California coast, especially in local sea lions, causing seizures, stillbirths, even violence.

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

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

Clicklike noises made by a small species of shark represent the first instance of a shark actively producing sound ...

A juvenile humpback whale died after recently washing ashore near the North Carolina/South Carolina state line.

Two killer whales have killed dozens — if not hundreds — of sharks, including the vaunted great whites, with an ease that has ...

A tragic incident has unfolded at Hartenbos Beach in Mossel Bay, where beaked whales were found stranded on the shore.

Longtime surfer Rj LaMendola was riding waves off Oxnard, California, on Friday when he was attacked by a "feral, almost ...