A mother-and-daughter team of citizen scientists has identified the world’s largest known coral colony, found on the Great Barrier Reef off the coast of Australia.

"I knew right from the minute we dropped in that it was something special," conservationist Sophie Kalkowski-Pope said.

MELBOURNE, Australia (AP) — The Great Barrier Reef has experienced its greatest annual loss of live coral across most of its expanse in four decades of record-keeping, Australian authorities say. But ...

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 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. MELBOURNE, Australia (AP) — The Great ...