10 Things You May Not Know about Butterflies Nature for my Soul How Butterflies Work HowStuffWorks Butterflies vibrate wings to warm up in cold weather Why do monarch butterflies shiver? They do this to increase their body temperature by warming their muscles so they can take flight., Photo Courtesy of Community Member Julie Bthanks Julie! How do butterflies fly? Australian Butterfly Sanctuary
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why do butterflies vibrate their wings The Butterfly Effect: Wing Research Method Shows Promise