Help! This guy has been been vibrating like this for nearly half an hour, he looks like hes fighting paralysis, can I help him? 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 Member Julie Bthanks Julie! Amazon.com: 3 Pcs Flying Butterflies for Centerpieces Wings Flutter in Sunlight, 3 Bright Colors Moving Butterfly Decorations for Yard, Outdoor Centerpieces & Garden Decor for Outside (Battery Not Included) : Butterfly wings are alive and double as hi tech sensors Bionic butterfly wings are ultimate heat sensors New Scientist Physical and behavioral adaptations to prevent overheating of the living wings of butterflies Nature Communications