Representative animals of rain solar terms

The representative animal of the rain solar term is the otter. In ancient China, rainwater was divided into three stages: "One stage is to sacrifice fish with water otters; Second, wait for Hongyan to come; Third-class grass sprouted. " It means that after the rainy solar terms, otters start fishing and put the fish on the shore, as if they were sacrificed first and then eaten; Five days later, the geese began to fly back to the north from the south. In five days, in the "moist and silent" spring rain.