UC Davis Research: How Loss of Migration Affects Monarch Butterfly Wings Entomology & Nematology News Did you know Monarch butterflies shiver their wings to stay warm? When temperatures drop, these delicate pollinators vibrate their wings rapidly in a behavior called shivering. This tiny motion generates heat, helping Ever notice a monarch butterfly vibrating its wings? This isnt just random behaviorits a survival strategy called Shivering. Especially when temperatures drop, monarchs vibrate their wings to Beating the Heat in the Living Wings of Butterflies BNL Newsroom