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Sturgeon in the Caspian Sea are being fished nearly to extinction for the luxury of their eggs: caviar. This Bio Bulletin features efforts to protect the fish by conservation biologists like Phaedra Doukakis with the Institute for Ocean Conservation Science at Stony Brook. Here at the American Museum of Natural History, Doukakis and her colleagues are DNA-testing caviar from U.S. gourmet stores to catch illegal importers of the most prized caviar, beluga.