The news of a “rain of frogs” reported in a small Brazilian town this October 17th, which quickly went viral on social media, has raised an age-old question once again: Can animals really fall from the sky? We explain what is actually behind this phenomenon.
In various places around the world, people have occasionally looked up during a storm and witnessed something incredible: small frogs falling alongside the raindrops. It sounds impossible, almost mythological, but this phenomenon has a scientific explanation that is as fascinating as it is real. Although it may seem like a scene from a movie or a biblical passage, yes, frogs can rain from the sky, and science has proven it.
Lluvia de ranas en Brasil por una tormenta, en México después de una tormenta lo que se produce es una lluvia de ratas. 👇
pic.twitter.com/IJETo5ywTw— Antonio Garci Nieto (@Garcimonero) October 17, 2025
What Does “Raining Frogs” Really Mean?
When people talk about “animal rain” or “Fortean showers,” they are referring to rare meteorological phenomena in which fish, frogs, worms, or even spiders appear to descend from the sky during a storm. These events, though uncommon, have been documented across different eras and continents. The earliest records date back to 77 AD, when the Roman naturalist Pliny the Elder described rains of fish and toads.
The term Fortean shower comes from the researcher Charles Fort, who in the early 20th century compiled hundreds of accounts of seemingly inexplicable events. While they were considered mysteries in his time, today we know that meteorological science can explain what is truly behind these strange downpours.
The Scientific Explanation: Tornadoes, Waterspouts, and Flying Frogs
The secret lies in extremely powerful wind vortices, such as tornadoes or waterspouts, which form over bodies of water like lakes, rivers, or the sea. When these vortices develop, they suck up water and everything it contains, including small, lightweight animals like frogs, fish, or insects.
Once trapped inside the swirling column, the creatures can be transported several miles away.
When the phenomenon loses strength, the air releases the trapped water and animals, which fall with the rain onto areas far from their original habitat. The result: a downpour of frogs that bewilders anyone who witnesses it.
Scientists explain that this only occurs under very specific conditions:
- Presence of strong updrafts.
- High humidity and a developing storm.
- Small, nearby bodies of water with lightweight fauna, such as amphibians or fish.
Why Are Frogs the Most Frequent “Protagonists”?
Frogs and toads are often the main “victims” of this phenomenon for a simple reason: their light weight and their habitat close to the water make them easily susceptible to being lifted by a waterspout. Additionally, amphibians often congregate in wet areas and puddles during their reproductive season, which happens to be when atmospheric conditions for severe storms are most likely. This creates the perfect combination: small animals in the right place at the exact time to be swept up by the winds.
Beyond the Wonder: Ecological Impact and Natural Significance
Although rains of frogs seem like a curious spectacle, they can have real consequences for ecosystems. If the animals fall into an environment different from their own, they could potentially alter local biodiversity or introduce new diseases. On the other hand, they can also contribute nutrients to the food chain, becoming food for local birds or mammals.
These phenomena, strange as they may seem, are a testament to the power and complexity of Earth’s climate. They remind us that the atmosphere is not just air and water: it is a dynamic force capable of shaping landscapes and transporting life.
While modern meteorology has explained much of the process, Fortean showers maintain an aura of mystery and fascination. Each time one occurs, it awakens the same ancestral astonishment as centuries ago: the sky “returning” creatures to the earth. Beyond myth or miracle, these showers invite us to look with respect and curiosity at the invisible processes that govern our planet. Because yes, it does rain frogs from the sky, but it also rains stories about how nature remains capable of the impossible.
This story was originally published by Carolina Gutiérrez Argüelles in Ecoosfera.
