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Upstairs disagrees with the opinion of swallows flying low before the rain! The air pressure is relatively low before rain, and insects are very sensitive to air pressure, so insects will move near the ground. And the swallow's main food is insects, so the swallow will fly low before the rain!
For some animals, rain is not the cause of their usual behavior. The real reason is the change in air pressure, light, and other factors when it rains!
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Animals that are forecast to rain are: swallows, frogs, ants, bees, loaches, turtles, etc. 1. Swallow:
In hot and humid weather, a group of swallows flying close to the ground is a sign of impending wind and rain. When it was about to rain, the weather was hot and muggy, and some small flying insects in the sky flew very low with their wings stained with small droplets of water in the air. In order to prey on these small flying insects, the swallows also fly very low.
In addition, when it is about to rain, the air currents in the air are turbulent, and the swallows are affected by the air currents, and they always fly up and down, high and low. So, when people see swallows flying low, they know it's about to rain. 2. Bees:
In the morning, if the bees do not leave the box, do not leave the box, or do not leave the hive for a long time, it is a sign of rainy weather. On rainy days, the wings of bees are not conducive to flying in the rain, and they are susceptible to softening by moisture or being overwhelmed by increased weight. In the humid air, bees can easily affect their vision, hearing, smell, and sensitivity, and some will lose their sense of positioning.
3. Frogs: In spring and summer, frogs call loudly and densely, indicating that it will rain soon. On the eve of the rain, the humidity of the air increases, and the frog's sensitive ** will immediately perceive it, and will keep chirping, and the volume will be higher than usual.
4. Ants: They line up in a long line and move to higher places, which is a sign that there will be continuous rainy days. Because ants that dig holes in the ground know that the holes will be flooded when it rains, they will run away before it rains.
5. Turtle: If the turtle is "sweating" on its back, it means that it is going to rain tomorrow. Because the tortoise is a cold-blooded animal, the tortoise shell is prone to heat dissipation, and the body temperature is lower than the air temperature.
When the water vapor in the air reaches saturation, it condenses into water droplets on the carapace of the tortoise, which is cooler. Therefore, the turtle's sweating means that there is a lot of humidity in the air, and it is likely to rain. References**:
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The following animal behaviors indicate rain:1. Swallows fly low, which is a precursor to rain.
2. Swallows fly low, which is a precursor to rain.
3. Ants move, snake aisles, there will be heavy rain within three days.
4. Frogs have difficulty vocalizing when heavy rain is about to come.
5. The fish rises to the surface.
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