What does the frog do to herald rain?

In the animal kingdom, frogs are called "living barometer", which is caused by the characteristics of frog skin. When the air is dry, the evaporation of skin moisture is accelerated, so frogs must stay in the water to keep their skin moist; In the wet and rainy season, the skin moisture does not volatilize and jumps out of the water. Therefore, frogs have become a "living barometer" for African aborigines to observe weather changes. As long as the locals see the tree frog climb from the water to the tree, they will do a good job of rain protection.