Scientists detected a powerful underwater sound called the Bloop in 1997. This mysterious noise traveled thousands of miles, ...

Glittery sea worms and sea squirts fit for "The Lord of the Rings" universe might sound like pure fantasy, but they're very real creatures living in the deep sea. Some of these otherworldly ocean ...

Going without food for even a single day feels difficult for most people, so the idea of surviving five years between meals sounds almost impossible. Yet that is exactly what the supergiant bathynomid ...

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.