An employee of Sofia's Zoo (not pictured) sprays water on an elephant to cool it off during a heatwave in Sofia, July 29, 2009.[Xinhua/Reuters]
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![An employee of Sofia's Zoo (not pictured) sprays water on an elephant to cool it off during a heatwave in Sofia, July 29, 2009.[Xinhua/Reuters]](http://images.china.cn/attachement/jpg/site1007/20090730/000bcdb95f1d0bdb456344.jpg "An employee of Sofia's Zoo (not pictured) sprays water on an elephant to cool it off during a heatwave in Sofia, July 29, 2009.[Xinhua/Reuters]")