WhaleX, though, is not the only project attempting to produce the perfect poo. The international Marine Biomass Regeneration ...

A massive environmental calamity rocked the ancient Mediterranean. It took millions of years for the ecosystem to recover.

In Hawai‘i, people, pigs, and ecosystems only have so much room to coexist, and the pigs exist a little too much.

A sea cave on the northwest tip of Tonga’s Kapa Island is my favorite place on Earth. Nothing compares to freediving in the vibrant blue waters of Swallows Cave as beams of light and schools of fish ...

As the Great Salt Lake in Utah shrinks, locals are working to preserve its critical brine shrimp fishery—along with the other entities that flourish in the lake’s strange, saline beauty.

Latex balloons designed to collect high-altitude data become a threat to marine animals after they burst—though the scale of their impact remains unknown.

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.

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.

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