This is a very rare natural phenomenon that has always scared people — the raining of animals. They can be fish, spiders, and even frogs. Scientists didn’t believe it was true for many years and because this phenomenon is very rare, nobody had studied it. Some people even thought that this was merely a fantasy created by people who saw rare fish moving on land.
The first person who seriously started researching this mystery was André-Marie Ampere. He suggested that sudden gusts of violent wind could lift animals, which would rain back to the ground when the wind disappeared. Later, scientists added more information to this idea: it wasn’t just wind, it was a water tornado. This would explain the fact that some animals were frozen because the tornado elevated them very high.
But there still hasn’t been much deep research done in regards to this phenomenon.