Coral Pictures, Coral Photos, Photo Gallery, Desktop Wallpaper

Organ Pipe Coral

Photograph by Robert Sisson

The rocky structure that make up coral reefs are actually a build-up of calcium secreted by coral polyps.
Pillar Coral

Photograph courtesy Florida Keys National Marine Sanctuary/NOAA

Coral polyps can reproduce asexually, forming cloned buds that separate from the "parent." They can also release sperm and eggs into the ocean. Fertilized eggs develop into larva, which float off to start a new colony.
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Pipe Coral

Photograph courtesy The Coral Kingdom Collection/NOAA

Corals get their vibrant colors from the algae they host.
Cavernous Star Coral

Photograph courtesy Florida Keys National Marine Sanctuary/NOAA

Coral and sea anemones are in the same family of stinging invertebrates. This close-up of a cavernous star coral shows the individual polyps, which resemble tiny sea anemones.

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