Inside a building, household ants feed on sugars, syrups, honey, fruit juice, fats, and meat. Long trails of thousands of ants may lead from nests to food sources, causing considerable concern among building occupants. Outdoors they are attracted to sweet, sticky secretions, or honeydew, produced by soft scales and aphids. Frequently outbreaks of scales and aphids occur when ants tend them to obtain their sweet secretions because the ants protect scales and aphids from their natural enemies. Ants can bite with their pincerlike jaws.