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.

Freshwater may soon flow from the deep sea to drought-stricken coastal cities. A handful of companies are exploring how deep-sea pressures can replace the energy-intensive pumps and toxic chemicals ...

A new study indicates that deep-sea mining could threaten at least 30 species of sharks, rays and chimaeras, many of which are already at risk of extinction. The authors found that seabed sediment ...

Scientists are conducting a pioneering large-scale deep-sea coral restoration in the Gulf of Mexico following the 2010 Deepwater Horizon oil spill, which damaged 1,994 square kilometers (770 square ...