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        Ocean Biodiversity: Discovering Marine Invertebrates | Smithsonian Science How

        Peer into the ocean depths using a remotely operated vehicle (ROV) to look for organisms. Meet Dr. Karen Osborn, a zoologist at the National Museum of Natural History. Take a visual journey with Karen 200-4000 meters down to the mid-water habitat. Visit this surprising world below the ocean's surface, where polychaetes and other invertebrates abound. Find out how zoologists like Karen give names to the new species they find. Consider the signficance of ocean biodiversity for the systems that sustain life on Earth.

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