One day last fall I discovered gazillions of ants climbing to the tops of weeds and buzzing away into the wind. I noticed nests all over were exploding with winged ants, all on the same day. Short lived males and millions of young queens were flying off to mate and start their own nests. Females store a lifetimes worth of sperm on this flight, and some queens live for 20 years!

Nuptial Flight of Unknown Ants