It's a rat race as 2 billion rodents flee rising water
They could sense their ship was sinking as the water level rose.
They decided to desert, all 2 billion of them, to dry land.
The exodus began on June 23 when the Yangtze River flooded, raising the water level in Dongting Lake and submerging the rat holes on the islands of the country's second-biggest freshwater lake.
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