The ring-shaped coral islands known as atolls, like this one in the Maldives Islands in the Indian Ocean, may trace their formation to sea levels repeatedly rising and falling over hundreds of ...

Coral reefs are one of the most diverse ecosystems on the planet. What are the abiotic and biotic interactions that structure this diverse ecosystem? Corals are members of the phylum Cnidaria, a ...

An image of the coral Stylophora pistillata taken with the new micrsope, BUMP. Each polyp has a mouth and a set of tentacles, and the red dots are individual microalgae residing inside the coral ...

Below the ocean’s surface, there’s a vibrant ensemble of sounds — a chorus of vibrations, croaks, pops and crackles that come together to form the soundtrack of a healthy coral reef. It’s a symphony ...

Record ocean heat has taken a devastating toll on one of the world’s greatest natural wonders, with coral bleaching on Australia’s Great Barrier Reef reaching “catastrophic” levels, a new study has ...

If you liked this story, share it with other people. The latest “report card” on Mesoamerica’s coral reefs made clear that 2024’s hottest-ever recorded summer temperatures devastated some of the ...

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 ...

His charges are a type of soft coral called gorgonians. "They're a fundamentally important part of the Caribbean and Floridian coral reef habitat," he says. Foord tends to more than 2,000 tiny soft ...