In a lab at the University of Miami, there are tanks of knobby, tan-colored corals from Florida, Honduras and the Cayman Islands. They've been drafted into a sort of coral Olympics, as scientists look ...

Even if you’ve never gone scuba diving or peered into a tropical tank at your local aquarium, you know that coral reefs are the ocean’s art show. They’re all bright, colorful and full of life — right?

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

Corals may look still, but they follow a daily sleep cycle. New research shows why corals rest at night while their microbes ...

From our collaborating partner “Living on Earth,” public radio’s environmental news magazine, an interview by producer Aynsley O’Neill with Steve Palumbi, Stanford University professor of biology and ...

In the realm of marine biogeography, there is a widely held scientific principle: the Atlantic and Indo-Pacific oceans are ...

A yellowtail parrotfish swims along a coral reef in Miami, Florida. Parrotfish are important for a reef’s health and are frequent visitors here. CREDIT: Coral City Camera. Get the Popular Science ...

Coral bleaching isn’t just an ocean crisis. Here’s how the global event endangers food security, local jobs—and the land itself. Sea water divides the sunset and a ghost land of corals in New Ireland, ...