Wild pandas face possible food shortage

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A giant panda drinks milk at the China Panda Protection and Research Center in Wolong, southwest China's Sichuan province, October 9, 2007. Six of the world's eight bear species are under threat of extinction after the addition on Monday of the sun bear, the world's smallest type of bear, to a 'Red List' which says China's panda is most at risk. [Agencies]