Army ants are a group of aggressive, nomadic ants known for their large colonies and coordinated hunting behavior. They belong to the subfamily Formicinae and are primarily found in tropical regions. Unlike many other ant species, army ants do not build permanent nests; instead, they create temporary shelters called bivouacs using their own bodies. These ants are famous for their ability to swarm and overwhelm prey, which can include insects and small animals. Their foraging raids can involve thousands of individuals working together, showcasing remarkable teamwork and communication. This behavior is essential for their survival and plays a significant role in their ecosystem.