Ant Facts • Army ants don't create traditional nests — they bivouac at night in a protected place, creating a "nest" by connecting their own bodies to form a mass. • There are an estimated 1,000 trillion ants living on the planet at any given moment, representing 11,800 known species. • Ants inhabit almost every habitat on Earth — including the stomachs of some frogs. In a tropical rainforest, ants can constitute up to 15 percent of the total animal biomass. • Some ant species use tools and herd and "milk" other animals. • Highly organized ant colonies can last for hundreds of years.