Scientists studying ancient ocean fossils found that the Arabian Sea was better oxygenated 16 million years ago, even though ...

A new study suggests the world's oxygen-depleted seas may have a chance of returning to higher oxygen concentrations in the ...

Here’s a look back at a sampling of long-gone island oases we wish we could duck into from the cold this winter.

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

For the first time, visitors will be able to see rescued sea turtles as they go through rehabilitation at the aquarium in ...

A remote underwater volcano in the Pacific has erupted again, hurling superheated material into the sea and staining the ...