Most termites are workers, with soft, light-colored bodies rarely more than 10 mm long, like grains of rice. They are blind, wingless termites that maintain the colony, build and repair the nest and care for others termite. They rarely leave the dark tunnels that run from the colony through the soil and into the wooden frames of buildings. Twenty-four hours a day, they forage for food, maintain the nest, and tend the queen and her brood. Juveniles, called nymphs, groom and feed one another and others in the colony.