Thousands of meters below the ocean's surface lurk some gigantic creatures, much larger than their shallow-water brethren. Scientists have a few hunches for why this happens, but the debate continues.

Researchers at MBARI, the Monterey Bay Aquarium Research Institute, have been exploring this hidden world for years. Using ...

About 90 percent of species found in the Clarion Clipperton Zone have never been identified, yet they may be at risk from mining for minerals such as cobalt and nickel. This sea urchin, found in the ...

When you think of great swimmers, animals like dolphins, fish, or penguins probably come to mind. But the animal kingdom is full of surprises, and many creatures you’d never expect to navigate well ...

Dive to places uninhabitable by humans and encounter regal whales and colorful reef life. Ocean Animals features the world’s most charismatic animals that inhabit a realm humans can only fleetingly ...

The species help harness carbon dioxide, a greenhouse gas, deep in the ocean, but much is still unknown about this region and its fascinating inhabitants. The terrifyingly toothy Pacific viperfish, ...

Scientists analyzed thousands of autopsies of seabirds, sea turtles and marine mammals and found that even small amounts of ingested plastic can be deadly. By Sachi Kitajima Mulkey Two baseballs for a ...

The natural world is full of interesting creatures with unique biological systems. Among the most interesting creatures is the starfish, also referred to as a sea star. Starfish are unique in that ...