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Census of Marine Life, international collaborative research project, undertaken 2000–10, that cataloged the diversity, distribution, and abundance of life in the world’s seas and oceans. The first of its kind, the census involved 17 discrete projects and 2,700 scientists. Their efforts substantially expanded global scientific knowledge of marine biota and identified groups of organisms and geographic regions in need of further investigation. In 1995 the National Research Council of the American National Academy of Sciences...