Photographers capture mutant crayfish, cleaning fish, and synchronized whales in this year's top underwater contests.

Federal officials say final permits will depend on health checks and confirmed care plans at accredited U.S. aquariums ...

When researchers from the University of British Columbia set out to film the solitary hunting habits of Northern resident killer whales, they expected to see quiet and solitary predators at work.

Grays endure an epic roundtrip journey of 10,000 miles or more, and California holds a prime seat through May. Along with ...

Santa Cruz, Moss Landing and Monterey harbors and Pillar Point Harbor just north of Half Moon Bay host vessels that offer ...

Baleen whales don’t have teeth. Instead, they use baleen, a filtering system that lets the largest animals on Earth feed on ...

Trowbridge and her Pacific Offshore Expeditions group spent the morning watching transient orcas feeding near the Channel Islands, west of Santa Barbara, before exhibiting playful behavior for several ...

Marineland has a “solid plan” to move Canada’s last remaining captive whales and dolphins to several parks in the United ...

For eight hours, all they saw were dolphins and the spouts of humpback and gray whales. Then, the call went out.

The move comes after Marineland presented what it called an urgent rescue solution to the federal government last week.

Marineland, a defunct amusement park near the Niagara Falls, had reportedly told Canadian officials that the only options for its 30 surviving belugas were ‘export or death’ ...