Coral reefs are one of the most diverse ecosystems ... Corals are colonial organisms made up of individual polyps, each 1–3 mm in diameter, that are connected to one another via a thin layer ...

Coral reefs are very much the rainforests of the oceans. Not only are they diverse communities, but the coral skeletons - like trees - contain potentially long term records of climate. Aa Aa Aa ...

An underwater investigation of coral bleaching in the South Pacific By Justin Worland | Photographs by XL Catlin Seaview Survey Richard Vevers has traveled the globe to photograph coral reefs ...

The Great Barrier Reef off the coast of Australia is the largest coral reef in the world. It spans 1,400 miles and is home to 400 types of coral ... to a series of coral reefs spanning across ...

This is a fossilized coral — one of dozens scattered across the Indian Ocean archipelago of the Seychelles. It is a piece of history, hidden in plain sight. It tells of a time 125,000 years ago ...