See the Beautiful and Endangered Red Coral of the Mediterranean | National Geographic

Red coral is the literal foundation of many Mediterranean ecosystems, and provides critical habitat for fish and other marine life. Harvesting by humans, pollution, ocean acidification, and warming waters all threaten the coral, which is now endangered. Efforts are underway to help preserve it, with some jewelry companies refusing to sell coral products, and the Catalan government will enact a decade-long moratorium on fishing starting in 2018.
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