Pharmacological Intervention of PIEZO1 for Butterfly Eyespot Color Patterns in Junonia orithya Butterflies Taste With Their Feet! NWF Ranger Rick 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 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 The Butterflies That Hear With the Veins in Their Wings The Atlantic