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Bile bears, sometimes called battery bears, are bears kept in captivity to harvest their bile, a digestive fluid produced by the liver and stored in the gallbladder, which is used by some traditional Asian medicine practitioners.[2][3][4] It is estimated that 12,000 bears are farmed for bile[5] in China, South Korea, Laos, Vietnam, and Myanmar.[6][7][8][9][10] Demand for the bile has been found in those nations as well as in some others, such as Malaysia[11] and Japan.