Giant Panda Mei Lan

Giant Panda Mei Lan takes a bite at an Earth Hour sticker on her cage, as she was announced as an Earth Hour Global Ambassador, to officially launch the countdown to Earth Hour in Chengdu, southwest <a class="taxInlineTagLink" id="PLGEO00000014" title="China" href="/topic/international/china-PLGEO00000014.topic">China's</a> Sichuan province on March 10, 2010.

( SIMON LIM/AFP/Getty Images )

Giant Panda Mei Lan takes a bite at an Earth Hour sticker on her cage, as she was announced as an Earth Hour Global Ambassador, to officially launch the countdown to Earth Hour in Chengdu, southwest China's Sichuan province on March 10, 2010.

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