• Photo: Close-up of branching coral

    Coral Patterns

    See the Brilliant Intricacies

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Invertebrate Features

  • portuguese-man-of-war-06.jpg

    Pictures of a Lethal, Gelatinous Beauty

    The Portuguese man-of-war is infamous for its painful sting, but one photographer finds the beauty inside this animal's dangerous embrace.

  • Photo: Organ pipe coral

    Coral

    It's reef madness in this colorful gallery of coral formations.

  • Photo: Cluster of orange cup coral

    Photo Gallery: Coral Reefs

    About 80 percent of all life on Earth is found in the oceans, which cover 71 percent of the planet's surface. Take a look at how colorful life under the sea can be.

  • Photo: A lobster and crab on the seafloor

    Lobster

    Learn more about these popular crustaceans that some think of only as a meal. Find out the sizes that these sea creatures are capable of attaining.

  • Photo: Sea cucumber

    Sea Cucumber

    Learn how these amazing echinoderms deter predators by snaring them with sticky threads and even hurling their internal organs about.

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