Our oceans harbor nearly half of all life on the planet. See the sea in all its forms in this gallery.
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Anthia fish swim past brilliant blooms of soft coral off Fiji's Namena Island. Algae called zooxanthellae give corals not only their color but also much of their nutrients. When water temperatures grow too warm, the algae abandon the coral. Unlike hard corals, soft corals don't leave a limestone skeleton behind and cannot regenerate.
Photograph by Tim Laman
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