a line of ants going back and forth from their home to a food source
In addition to the welcome residents of a home, there are frequently pests - ants, cockroaches, rats, snakes, squirrels, raccoons, skunks, wasps, mosquitos, opossums and bats. Then there are the pests in the garden.
Problems[]
Pests can contaminate food, damage garden plants, create messes, bite, sting and cause numerous other problems.
As the same plant can be desired or a weed, an animal can be a pet or a pest. People keep mice as pets, but mice running wild through a house are generally considered pests.