Like fighter pilots of old, male dragonflies engage in aerial combat where each tries to outmaneuver the other to keep a sight on their rival’s tail. A recent study observed this combat in the field and uncovered some surprising similarities to dogfighting. Like pilots, dragonflies used spiraling turns and other high-g moves to gain an advantageous position behind the other. In human combat, that position favors the forward-facing weapons of the pilot in back; for dragonflies, it keeps their rival in the part of their vision that best detects movement.
Interestingly, the team found that–even in the midst of combat–dragonflies spent at least a third of their time gliding. It’s unclear whether they glide to conserve energy or because it’s easier to track a rival when gliding.
The authors dig into the control rules needed for dragonflies to execute these chases and found that even relatively simple control schemes–constrained by the dragonfly’s physical limits–result in complex flight contests. (Image and research credit: S. Fabian et al.; via Ars Technica)
