Single reefs here hold four times as many species as the entire Atlantic Ocean. All the planet's richest reefs lie within the "Coral Triangle" – a glittering collection of islands in the Indo ...

Embark on a captivating journey into the ocean, where you'll discover the beauty of sea animals and their incredible fish catches. From colorful fish darting through coral reefs to majestic sea ...

When average ocean temperatures rise even half a degree, the algae inside the coral polyps start producing ... Watch Reef Rescue on The Nature of Things.

Martin Harvey / WWF The amazing thing about ... the zooxanthellae and the coral polyps is an excellent example of a mutually beneficial relationship, also known as symbiosis. Although they occupy less ...