Для чего нужны цикады: почему они живут под землей 17 лет?

Cicadas spend almost their entire lives underground, living in complete darkness and feeding on tree sap. But once every 13 or 17 years, they emerge en masse, transforming forests into a living sea of ​​sound and movement. Their synchronized emergence is one of nature's most mysterious survival strategies, based on precise biological "math." In this video, you'll learn how cicadas count the years, why their cycle is linked to prime numbers, and how they influence entire ecosystems. This is a story about time, survival, and nature that's more complex than any science fiction.