Why does the tortoise predict the weather?

Because the turtle's shell is wet when it is going to rain, the turtle will predict the weather. This is because when the meteorological conditions change, the activities and habits of turtles will also change, so people predict the weather according to these changes.

"The turtle has sweat on his back, so he takes an umbrella when he goes out." The turtle's back shell is wet, and the lines on the shell are mixed and dark, which is a sign of rain. There are drops of water on the turtle shell, like sweating. It's going to rain heavily. The dry shell and clear lines indicate that it will not rain in the near future. This is because the turtle is close to the ground and its back is smooth and cool. When warm and humid air moves, water drops will cool and condense on the turtle's back, and it will rain. On the contrary, the air is dry and it won't rain for the time being.

The principle is that because of the turtle's special physiological structure (no one knows how to make it special except the creator, hehe), its body (turtle shell and epidermis) has obvious electrostatic induction to the change of humidity in the air, and its response is also relatively large, similar to some people's rash at the turn of spring and summer.