The possibility of invasion of trillions of giant bees in America after 200 years

In 200 years, giant bees in the number of trillions are likely to invade America.

Experts have warned that an unusual number of large flies Cicadas will engulf dozens of US states this spring.

Experts say that different types of big bees, which grow separately after many years, will be born together this year.

He also said that such a situation will happen again only after 221 years.