Researchers are restoring the Caribbean’s surprising, spiky custodians, which gobble up the algae smothering coral reefs.

The adoption of ship scrubbers—technology meant to clean up dirty fuel—has caused a surge in heavy metal pollution.

Non-native pink salmon have swarmed Norway’s rivers, prompting a relentless—and potentially fruitless—fight to beat back the invaders.

Fishers organize their catch in their traditional dugout canoe, called a dungi, after a day of shrimp harvesting at Hara ...

As the climate warms, popular coastal tourist haunts across Europe will be hit hard by extreme weather.

The adoption of ship scrubbers—technology meant to clean up dirty fuel—has caused a surge in heavy metal pollution.

One Great Shot: Are You Ready for This, Jelly? During a nighttime dive, a veteran underwater photographer captured a tiny fish’s cunning effort to find a safe spot in a dark sea.

Squeezed between the ocean and Cape Town’s urban sprawl, coastal caracals are the first felines to regularly dine on marine prey.

As the aquaculture industry grows, new research finds that seafoods raised in marine waters have a smaller carbon footprint than those raised in fresh water.

The ocean became a dumping ground for weapons after Allied forces defeated the Nazis. Now a team of robots and divers are making the Baltic Sea safer.

The adoption of ship scrubbers—technology meant to clean up dirty fuel—has caused a surge in heavy metal pollution.