What phenomena can be seen in the weather forecast that it is raining?

1, goldfish floating. If the domestic goldfish suddenly floats to the surface from the bottom of the fish tank, it seems to be inhaling. This means that it is going to rain. The reasons are as follows: fish need to absorb oxygen from the water. When it rains, the air pressure is low, and the amount of air in the water decreases. If the fish can't stand it, they float.

2. Swallows fly very low. Swallows are forced to fly low because their important food is insects in the air. Because it's going to rain, the wings of insects have already felt the humidity of the air and can't fly high. Swallows that prey on insects have to fly low, which is a clear sign of rain.

3, the chicken does not enter the nest. Chickens are afraid of heat because they have no sweat glands. It's usually sultry before it rains. At this time, even if you drive them in, they will not move and stay in a cool place. Especially in summer, if this happens, there will be thunderstorms in all likelihood.

4. Toad comes out of the hole. Toads are afraid to do so. Because their skin is very fragile. So in general, we only see toads croaking at night. If it's going to rain, toad will have activities if he feels the air is humid. As the saying goes, "When a toad goes out, it will rain".

5. ants can move. Ants have the ability to feel rain, because they are the animals closest to the ground. Generally, ants can know whether it has rained recently by changing the humidity in the air. Then move the nest from low to high. Ants are very busy before it rains, so you can observe them if you are interested.