Scientists still have much left to learn about the creatures, even as hundreds of thousands of them wash ashore.

Darkness dominates most of the ocean. Sunlight fades quickly as you descend, and by the time you reach the deep sea, natural ...

The video explores the world’s largest ocean creatures, including blue and fin whales, whale sharks, giant and colossal ...

In the dark waters 600 meters below Monterey Bay, a torpedo-shaped robot called Mesobot drifted silently behind a pulsing ...

Beware of the beauty! Explore twelve of the ocean’s most dangerous inhabitants, from the box jellyfish with its lethal sting ...

The ocean is home to some sea creatures that will likely give you a fright. Much of the ocean's marine life is yet to be discovered, with scientists estimating that a whopping 91% of ocean species ...

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 ...

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.

Animals come in an extraordinary range of body shapes. A starfish looks nothing like an earthworm, a mouse, or a human. Yet even closely related species can appear radically different: corals, ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Although the apple ...

From shallow reefs to pitch-black depths, the ocean is alive with sparkling lights. Fish, squid, clams and plankton have found a wide range of ways to glow, shimmer and flash, lighting up the dark ...