The ocean goes by many names — the high seas, the deep, Neptune's Realm — but its most famous moniker is the simple, iconic, Big Blue. The global ocean's deep blue hue is arguably Earth's greatest ...

A new blue octopus species, Microeledone galapagensis, was recently discovered near Darwin Island in northern Galápagos.

The disappearance of sea ice in polar regions due to global warming not only increases the amount of light entering the ocean, but also changes its color. These changes have far-reaching consequences ...