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 ASOS DESIGN Curve Lola lace garter belt in black ASOS Butterflies Taste With Their Feet! NWF Ranger Rick Butterflies vs Moths: What are the differences? Brandywine Conservancy and Museum of Art