Butterflies' 'secret' to keeping cool hidden in wings Research News Butterflies are tiny solar powered flyers! Butterflies are coldblooded and often sunbathe with wings openjust to warm up enough to fly. They can increase their internal temperature by vibrating their wings. You How thin, delicate butterfly wings keep from overheating How Butterflies Work HowStuffWorks What the powder on butterfly wings really is and how it protects them The Times of India 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