Termite
A termite colony starts when winged termites (called alates) swarm and mate. After mating, they fall to the ground and rip off their wings. The female looks for a good place to start the colony, and the male follows her. Most termites nest underground their entire lives, but termites in Africa and Australia actually build really big mound structures that look like little mountains and can be more than 20 feet tall (see photo below).