Sea

Along the Pacific Coast, fast and furious sunflower sea stars are vicious hunters as adults—and they're even hungrier when young.

From penis dueling to pee potions to switching sexes, there’s no one right way of getting it on in the ocean.

The Monterey Bay Aquarium displays vibrant jellies, fascinating fishes, and the largest crab in the world.

Welcome to the home of pink coral-scapes and fluorescent lizardfish.

No one was sure about the size of these almost-mythical wildlife events—until we got it all on camera.

The local Epiphany celebration of Grado, Italy, is inspired by a mysterious band of 16th-century pirates.

The coastal community of Selsey welcomes the return of salt marshes where farms once stood.

Receding waters are leaving behind an environmental disaster, and a new kind of tourism.

Isabella Abbott, the first native Hawaiian woman to earn a doctorate in science, rewrote the book on her beloved limu.

Houses and other buildings that rise and fall with water levels are becoming more common in Dutch cities.

Clinging to the underside of ice hundreds of feet thick, strange communities eke out a living, while researchers race to study them before they disappear.

It's complicated.

It revives a centuries-old tradition.