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 Why Is My Vagina Vibrating? What You Need to Know Turbo Butterfly Light LED Pointer Wand Cat Toy 88331 PNKCAT Blain's Farm & Fleet Review of vibration texturing ScienceDirect Why Do Some Monarch Butterflies Have Crumpled Wings? 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!