Explain the reason behind the animals falling during rain? Please give clear explain.
Still, even once you throw out those misreported incidents, and you dismiss most accounts before, say, fifty years ago because of inadequate documentation, there's still plenty of legitimate incidents left over. The possible explanations for these range from the absurd - evidence of the apocalypse or other supernatural happenings - to the sublime, such as when forest officials in india spectaculated that raining fish were the result of pelicans dropping their food during their migration.
In a cool bit of historical trivia, the first scientist to really seriously attempt to figure out what was going with these stories of raining animals was the French physicist André-Marie Ampère, whose last name might well tip you off that he made his name in a different field altogether. Still, when Ampère wasn't discovering electromagnetism and lending his name to the unit of electric current, he offered the first known coherent hypothesis for why frogs could suddenly fall from the sky. As he suggested at a meeting of the Society of Natural Sciences, sudden gusts of violent wind could lift large groups of frogs high into the air, and then when the burst of wind dissipated they would rain back to the ground.