Ants primarily use soil, leaves, and other plant materials to build their nests, with some species incorporating debris, twigs, or even organic materials like fungus. The type of nest an ant builds largely depends on its species and environmental factors. Some ants construct intricate underground burrows, while others create arboreal nests in trees or above ground mounds. The nest structure varies, serving as a hive for the colony, where they raise their young and store food. Ants' ability to adapt their nest-building materials demonstrates their resourcefulness and teamwork within their social structure.