RHINOCEROSES
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Depending on the species, rhinos have one or two horns. The horns grow continuously throughout the animal’s life. The horns of most animals have a bony core covered by a layer of keratin (the same substance found in hair and nails). Rhino horns are unique because they are composed entirely of keratin. In Asia, many people believe the rhino’s horn contains magical or medicinal qualities. This has
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territory, during mating, and to defend themselves from predators.