@SFOMuseum Twitter Posts This is SFO Museum's archive of the @SFOMuseum Twitter account.
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Shaped much like a helicopter, #dragonflies use direct flight muscles—muscles attached directly to the wings—to pull their wings up and down. However, because of how these muscles are attached, the wings cannot fold flat over their backs. #IntriguingInsects . This tweet was posted on November 25, 2019.