KENNEDY SPACE CENTER, FLA. -- Sandpipers investigate a washed up horseshoe crab on the river bank on Kennedy Space Center. Sandpipers are found on shores and in wetlands around the globe, breeding on the Arctic tundra then returning to more temperate climes. KSC shares a boundary with the Merritt Island Wildlife Nature Refuge. The refuge is a habitat for more than 310 species of birds, 25 mammals, 117 fishes and 65 amphibians and reptiles. In addition, the Refuge supports 19 endangered or threatened wildlife species on Federal or State lists, more than any other single refuge in the U.S. Photo credit: NASA/Dimitri Gerondidakis KSC-07pd0869