Sharks are often imagined as massive, powerful predators cruising through open water, but not all sharks are great white-sized. Along the coasts of the United States and in the deep offshore waters, ...

For centuries, massive teeth found along coastlines puzzled scientists and naturalists. Researchers later discovered these ...

The ocean is full of surprises, and scientists are still finding creatures that seem almost unreal. From tiny reef animals to bizarre deep-sea species, these discoveries show just how much of the ...

The vast array of organisms in the deep sea remains a mystery to humans. Now, marine biologists can add one more puzzle to the list. A collection of odd materials was discovered nearly four miles ...

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.

A deep-sea mining test shows ecosystem damage can begin immediately, with more than one-third of seafloor animals lost in a single pass.

From frozen mountain ranges to swamps, deserts, forests, and open coastlines, the United States is home to an extraordinary ...

In the late 1980s, a set of military ears listening for submarines instead picked up something far stranger: a solitary, off‑key voice pulsing through the deep Pacific. The sound did not match any ...

Scientists say sea monster is a new kind of animal. This unidentified specimen belonging within Relicanthidae is a sea creature that was previously thought to be a giant sea anemone (order Actiniaria) ...

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 ...