Ah, the life of a termite queen. Once you've established a colony, your main job is to mate with the termite king and fill your subterranean halls with your squirming, wood-hungry brood. Apparently, however, all that baby-making takes a toll on your life span, while the king lives on. Enter the secondary queen, who picks up right where the dead primary queen left off.
Scientists at North Carolina State University have made a fascinating discovery concerning just where this secondary queen comes from. While the primary queen produces the rest of the colony's young through sexual reproduction with the king, she goes it alone when it comes to spawning a successor. Yes, she produces asexually, producing an offspring that shares only her genes -- essentially cloning herself.