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Does your dog tell you when a storm is coming? He might if you watch him
(close) enough. Animals often start to act (different) before bad weather. But how can animals tell bad weather is coming? Scientists say that some (animal) pick up electrical signals made by rocks moving underground. Animals can also sense the weaker "shocks" in the earth before an earthquake. China recently experienced its worst earthquake in 30 years. And right before the quake there were many (nature) signs that a storm was approaching. Ten days before the earthquake, the water in a pond in Hubei province disappeared. Then, days before the event, thousands of toads appeared on the streets of nearby Mianzhu. Local residents told Chinese officials the toads were a sign of a disaster, but were informed that the sudden plague of toads was "normal". Finally, right before the earthquake, animals in a local zoo began to "act (strange) ": (zebra) banged their heads against zoo walls; elephants "swung their trunks wildly"; lions and tigers were walking around; and peacocks began to screech five minutes before the disaster, (report) a local newspaper.