Ants are the most abundant social insects on the planet.
There are all kinds of ants roaming the earth, including more than 450 species in North America alone. Some may be considered a nuisance, especially when they invade your home, favorite picnic spot or sting you. Generally speaking, however, ants are beneficial insects, and the ones commonly found in landscapes don't actually eat plants. They also aerate the soil as they tunnel to create their nests. Some ants can cause damage to plants indirectly, however.