Many animals do strange things before an earthquake(地震).This news may be important.Earthquakes can kill people and knock down homes.The animals may help to save lives.
Some animals make a lot of noise before an earthquake.Farmers have told about this.Dogs that are usually quiet have started to howl(吠).Horses on farms have run around in circles.Mice have left their holes and run away.Cows have given less milk.
In a town in Italy,cats raced down the street in a group.That happened only a few hours before an earthquake.In San Francisco,USA,a man kept tiny pet frogs.One Sunday,the frogs jumped around more than ever.They made loud noises,like bigger frogs.That night,an earthquake struck the city.
But the May 12 Earthquake,which took place in Wenchuan,Sichuan Province in China,was very special.People didn't notice any signs.Thousands of people were killed and thousands of houses collapsed(倒塌).