Scientists uncovered an ant mega-city underneath an uninhabited ant hill as part of an Amazon Prime documentary.

Narrator: At first glance, a fire ant hill — or mound, as it's properly called — looks impossibly small. And yet, a colony of up to 250,000 ants call it home. But here's the secret ...

Each Argentine ant colony has multiple queens, allowing the colony to expand rapidly both in population and territorial control. Today, native Californian ant species like harvester ants and ...