Butterfly ClapFling Flight Mechanisms Observed by Schlieren Imaging for the Design of Bio Inspired Micro Air Vehicles It's only the low vibration, uncouth bugs like flies and wasps that try to enter your house unannounced : r BlackPeopleTwitter Ever notice a monarch butterfly vibrating its wings? This isn't just random behaviorit's a survival strategy called Shivering. Especially when temperatures drop, m the_monarch_movement Facebook Butterfly FAQ American Museum of Natural History Ever notice a monarch butterfly vibrating its wings? This isnt just random behaviorits a survival strategy called Shivering. Especially when temperatures drop, monarchs vibrate their wings to