There are more than 12,000 species of ants in the world.
Ants invade your home to forage for food or seek shelter or both
Ants come in many varieties that may infest or damage your home. Carpenter Ants infest the wooden portions of your home and cause damage similar to termites.
Ants can spoil more than a picnic. Some species can destroy wood buildings, and others can bite. Although ants play important roles in nature, they don't belong in people's homes. Fortunately, there are many simple steps you can take to resolve the problem once you know what kind of ant you are dealing with.

Fire ants have become a regional nuisance; they will build their nests in mounds of soil outdoors, in landscape areas or near a building’s foundation. They occasionally enter buildings through holes or cracks in walls and foundations
Fire ants are aggressive when disturbed and will defensively attack anything that disturbs their mounds or food sources.

Fire Ants sting their victims, causing a burning sensation from the poison they inject: allergic reactions can be severe and even fatal.