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 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 Vibrations in the Breast: Should I Worry? Why you get butterflies in your stomach, and how to calm them Calm Blog The moment she takes off and starts flying around their house @skylerstelz shared that despite butterflies having a very short lifespan, she was determined to see this butterfly fly again!