Scientists discovered 24 new deep-sea species, including one from a completely new branch of life in the Pacific Ocean.

Proponents say they want to dredge the seafloor for metals needed for clean technology. Indigenous Pacific Islanders call it a threat to life, culture, and the ocean itself.

Deep in the Pacific Ocean, a tiny bright yellow worm called Paralvinella hessleri thrives where almost nothing else can, around boiling hydrothermal vents that gush metal-rich, poisonous fluids. These ...

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 ...