To survive the deep ocean, sea creatures have all kinds of adaptations that give them alien-like appearances, such as huge ...

A two-week expedition off the coast of Brazil has identified 31 previously unknown deep-sea species, many with forms so unusual they have drawn comparisons to alien life. The effort relied on advanced ...

Explore 25 deep sea discoveries that reveal Earth's most alien ecosystems. From chemosynthetic vents to transparent-headed ...

From the carnivorous death ball sponge to ghostly worms that glow yellow, these recent deep-sea finds prove the ocean is far ...

These ocean animals were discovered through deep-sea expeditions, genetic work, divers, and remotely operated vehicles.

Add Yahoo as a preferred source to see more of our stories on Google. Stunning underwater footage has captured an eerie, alien-like sea creature gracefully swimming beneath thick Arctic ice. The ...

One surprise find was a new species of a clear jellyfish-related animal called the Erenna siphonophore. The animal was found about 6,500 feet below the surface of the ocean. The different species of ...