All About Butterflies Cambridge Butterfly Conservatory Why does this butterfly have crumpled wings like this? Nature Talk iNaturalist Community Forum Control Valve Vibration Love is in the air: how butterflies date Natural History Museum 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 Seismology meets botany: Geologist applies vibration science to saguaros