Ants form colonies that range in size from a few dozen predatory individuals living in small natural cavities to highly organized colonies which may occupy large territories and consist of millions of individuals. These larger colonies consist mostly of sterile wingless females forming castes of "workers", "soldiers", or other specialized groups. Ant colonies also have some fertile males called "drones" and one or more fertile females called "queens". The colonies are sometimes described as super organisms because ants appear to operate as a unified entity, collectively working together to support the colony.
Ants have colonized almost every landmass on the face of the earth.
The only places lacking indigenous ants is Antarctica, and certain remote or inhospitable islands. Their success has been attributed to their social organization and their ability to modify habitats, tap resources, and defend themselves.
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