A worker shows a white ant dug out from a termite nest that settled in a dyke in Qingyuan, South China's Guangdong province, July 14, 2010. The two-meter-deep termite nest has been entrenched on the dyke for more than 10 years, which was once badly breached by a flood in 1964. To ensure its security, flood control construction workers made a thorough search of the dyke and destroyed 23 termite nests. [Photo/CFP]
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