Honeycomb Coral, Indonesia

Photograph by Mark Pickford

In waters off the Raja Ampat Islands, a honeycomb coral glows green. The archipelago is a hot spot of coral diversity—some 75 percent of all known coral species can be found there.

(From the National Geographic book Visions of Earth)

Buy the book Visions of Earth »
Watch a video of highlights from the book »
See more pictures in our monthly Visions of Earth feature »