For a long time, we have thought that animals are more sensitive to earthquakes than human beings. For example, there were rumors that a large number of frogs crossed the street before the Sichuan earthquake. Recently, there were also strange phenomena in Xufeng County of Zhanjiang City in Guangdong Province. A large number of crabs gathered on two mahogany trees by the sea in Shatuo Village, Jiaowei Township for several days. Such abnormal phenomena have drawn high attention from relevant local departments. Seismic monitoring experts said that the crabs climbing up trees were due to the abnormal climate in recent times and had nothing to do with earthquakes.