A new study suggests that the Earth's oceans may have changed color over time and could change again in the future, depending ...

The disappearance of sea ice in polar regions due to global warming not only increases the amount of light entering the ocean ...

Melting polar ice narrows the light spectrum underwater, favoring blue-tuned algae and disrupting the ocean food web.

Thousands of blue blobs blanketed Southern California beaches after winds carried them ashore. Velella velellas, or ...

“Traveling in colonies of hundreds,” the sea animals traverse the “open ocean in search of food with only the wind as its form of movement,” the Aquarium of the Pacific said. Their blue ...