Second only in size to the blue whale, seeing a fin whale surface from the ocean's depths can leave you spellbound!

volcanic ash released from Kīlauea on Hawai'i Island had not previously been linked to open ocean phytoplankton blooms. The 2018 eruption of Kīlauea was one of the largest in more than 200 years ...

Strandings of these jellyfish-like animals, sometimes called "by-the-wind sailors," usually mean spring is coming ...

The ocean naturally pulls in about a quarter of the carbon dioxide people produce. It's the planet’s largest carbon sink.

These intimidating but misunderstood creatures have been frequenting shallow waters at a much higher rate in recent years.

Over the winter, veterinary staff treated the turtles for problems like pneumonia, infections, and injuries related to cold ...

One sign of seasonal change for locals is people flocking to Monterey Bay in the spring and fall to view migrating whales.

The dramatic incident transpired in Bremer Canyon, a marine park off the coast of Bremer Bay on Monday (Apr 7).

Newly released satellite footage shows the world’s largest iceberg running aground near a remote island in the South Atlantic Ocean last month. Slightly smaller than Rhode Island, A23a ...

Nevertheless, the small, colorful creatures “provide a window of wonder and awe to the great ocean,” Jennifer Stock ... know and don’t know about the largest habitat on the planet.” ...

The U.S. military has deployed six B-2 Spirit stealth bombers to Naval Support Facility Diego Garcia in the Indian Ocean, marking what analysts call the largest forward deployment of its kind.