Control Valve Vibration Needy Caterpillars Vibrate to Complex Rhythms to Communicate With Ants So Ive never seen this shaking before. This male is about 4 hours after eclose. Was walking on the ceiling and flapping wings normally. , Flew onto leg and shook a while. Later flew off and onto I found a butterfly but it won't fly. It's not dead because it moves but it won't fly. What do I do? : r Butterflies Cicadas pee in jet streams like bigger animals Popular Science Why do monarch butterflies shiver? They do this to increase their body temperature by warming their muscles so they can take flight. Photo Courtesy of Community Monarch Butterfly Garden Facebook