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 A butterfly's electric glow Physical and behavioral adaptations to prevent overheating of the living wings of butterflies Nature Communications Natural wonder: Wing 'clap' solves mystery of butterfly flight Beating the heat in the living wings of butterflies