4 ms·Dragonflies do a backwards roll to fly upright – even when unconscious3 points by _Microft 6y ago_Microft 6y agoPDF: https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2020.2676 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2020...