A、Because many people believe in old ways of predicting weather. B、Because city dwellers have no other ways of predicting weathe

Most people know at least some of the old ways of predicting weather. (26) Most of these older ways depended on careful observation of the behavior of animals and insects and of the appearance of clouds, the sun. the moon and growing plants. But we are mostly city-living people and have forgotten the origin of many of these ways of foretelling weather. We should not laugh at these examples of weather wisdom, however. Since they are based on what people have seen year after year they are often quite accurate.
     Animals are commonly thought to be more sensitive to changes in the weather than we human beings. Our senses have become dull:(27) we are not so close to nature and our lives do not depend so much on warnings given by the senses as animals do.
    (28) Every country has its own particular weather wisdom connected with animals. In northern countries, where winters are hard, the behavior of animals which hibernate or migrate is taken to indicate what sort of winter is coming. The squirrels may be seen gathering their food supply of nuts earlier than usual; the dormouse may dig more deeply than usual, the migrating birds may gather for their flight south earlier than usual. All these signs would be seen by the countryman as predictions of an especially severe winter to come. According to so many examples we could see animals are so sensitive, and their senses are more accurate than our human beings. If we’ll find the extraordinary of their behaviors, so pay attention to it.