Why do cicadas sing before it rains?

Because before it rains, the air pressure drops, the air is humid and sultry, the cicada's wings are wet, and it instinctively shakes its wings. This is the cicada singing.

Precursors of rainstorm: Dragonflies and swallows fly low, ants move, fish come to the surface for air, and rainstorm is coming soon.

Animal prediction of rain: Before it rains, there will be swarms of mosquitoes, swarms of rain ants and cats washing their faces. Frogs chirping, swallows flying low, it's going to rain, frogs chirping, swallows flying low and so on.

Cockroaches fly around with showers. Cockroaches are very sensitive to climate change. If you see cockroaches flying around at night, it means that the weather has changed and it is going to rain.

Spiders weave webs, and it will clear up after a long rain. Because it has been raining for a long time, spiders can't weave webs to hunt. If you see spiders crawling out to weave webs, it means that the weather will clear up soon.

Extended data:

About animals predicting the weather:

chicken (as food)

Weather forecast method-before it rains, the air pressure is low and the humidity is high, insects fly close to the ground, and chickens are looking for insect food. In addition, the cage is stuffy, and chickens don't want to enter it. As the saying goes, "chickens are worried about the rain, ducks are worried about the wind."

white ant

Weather forecast method-in spring and summer, the weather is sultry and termites fly out of caves. I didn't know the way back to the cave at night, so I jumped at the light, which indicated that it would rain heavily or thunderstorm in a day or two.

fish

Weather forecast method-"Fish jump out of the water, and wind and rain are coming", "Fish play with flowers in the river, and it rains in the sky". When it rains, the weather is dull and sultry, which reduces the amount of dissolved oxygen in the water, so the fish float to the top of the water and even breathe on the surface.

As the saying goes, "Swallows fly low, snakes cross the aisle, and heavy rain is coming." "Water snake dish firewood head, underground heavy rain flow."

Baidu encyclopedia-animal omen of weather change