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The problem comes when the nests grow out of control and they threaten people children and pets. Ants are considered pests because they can be destructive at times. Carpenter ants for example who create their tunnels and nests in wooden structures around a home can cause serious damage to that home. Red imported fire ants will defend their nests and can sting pests and humans who stumble into their ant hills. Ants will walk across dead animals. They also walk through faeces and other materials which they can transfer to cooking surfaces around a home which can infect food and make people ill. Ants will also chew their way into food packages. There are a variety of species of ant and different species communicate in various ways. Most species of ant communicate via chemicals. Ants secrete pheromones which they can sense using sense organs on their bodies. Scouting ants will lay down a chemical trail to food sources they find which can lead the rest of the workers to that food source for the colony. Ants will release a distress chemical much like some species of wasp to indicate there is a threat to the
colony and cause the nest to swarm and attack the threat. Ants are also known to use sound as a way to communicate. There are other species that use touch with one another to send signals and communicate information. Some species of ant use multiple methods of communication based on the situation and what the colony is experiencing at the time. One of the most
remarkable things about ants is they have a very close sense of community and their instincts tend to be geared toward working together to help and protect their colonies. Some of the behaviour ant colonies have shown when working together have been remarkable but can vary from species to species. Almost all species of ants will work together to bring food to the colony. Scout ants will head out from the nest to find a food source and then use various means to let the rest of the colony know where this food source is.