moths do not shiver because they are frightened, but because they have muscles that need to be warmed up before flight. the shivering helps to regulate their temperature and ensures their wing 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 Guys it's been 5 mins and this butterfly is not flying from my hand, she is alive but she is not moving anywhere : r Butterflies 5 Basic Butterfly Behaviors to Know Birds and Blooms Ever notice a monarch butterfly vibrating its wings? This isn't just random behaviorit's a survival strategy called Shivering. Especially when temperatures drop, monarchs vibrate their wings to generate heat and warm MS and Vibrating Sensations: What Do They Mean? MyMSTeam