Butterflies are tiny solar powered flyers! Butterflies are coldblooded and often sunbathe with wings openjust to warm up enough to fly. They can increase their internal temperature by vibrating their wings. You Armor on butterfly wings protects against heavy rain Cornell Chronicle 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 Exhart 2pk Large WindyWings Butterfly Stakes, 11 inch wingspan Butterfly inspired method for robot wing movement works without electronics or batteries eMotionButterflies Festo USA