Army Ants are predatory ants from South American rainforest. They mainly eat insects, and other larger prey. The reason they are called Army Ants is because they have known to swarm large prey. They are relentless when attacking. Like all ants, they live in colonies where there is different type of ants such as builders, foragers, warriors and the queen. Like all ants, they recognizes each other by there scent called pheromones. When army ants are out on the land they are creatures to avoid because animals can suck up into the swarm.