
An ant colony starts in general with a queen (alate reproductive female) that has just landed from the nuptial flight in which she has been inseminated by one or more males, has lost her wings, and has found a protected place or has excavated a chamber.
In this protected place (the nest, that does not necessarily have to be constructed, but can be a natural chamber under a rock, for instance) the queen starts to lay eggs, from which after a certain period emerge the larvae. The queen may search for food outside the nest or regurgitate her liquefied wing musculature (she will never fly again). In this initial period the queen is responsible for all colony tasks, not only feeding the larvae and herself, but also for the maintenance of the nest and for colony defense. The larval phase is when the ants grow, so they have to be constantly fed.

The colony passes through a growing phase, not only in population but also in nest size and the area over which the workers forage for food.

The colony growing phase may last several years and the colony may end up with millions of individuals living together at a certain time.

After the colony growing period, which varies among species, but in general may take some years, the colony produces its first generation of sexuals, that is alate female and males.

The colony passes through a growing phase, not only in population but also in nest size and the area over which the workers forage for food.