ALEXIS ROSENFELD / SCIENCE PHOTO LIBRARY ALEXIS ROSENFELD / SCIENCE PHOTO LIBRARY
Remora (Echeneis naucrates) clinging to a Dugong (Dugong dugong). View of the underside of a dugong, with a large remora. Remoras are any of a number of warm-water fish with a large oval sucker on the top of their head, used to attach themselves to sharks, rays, turtles and other large aquatic animals. They travel with their host, feeding off scraps from their kills and sometimes on their crustacean parasites. Photographed in the Indian Ocean.
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