Tom Howarth is a Newsweek reporter based in Bristol, U.K. His focus is reporting on nature and science. He covers climate change, biodiversity, extreme weather, zoonotic diseases and more.

Soft-bodied animals, large enough to be seen by the naked eye, evolve around ... it comes in contact with oxygen. The fine, bright orange particles that settle on the ocean floor are the product ...

Why is oxygen important for the ocean, and what is ocean deoxygenation? Oxygen is important in the ocean for the same reasons it is important on land; the plants and animals that live there require ...