Millimetre-Sized Drone (IMAGE) IOP Publishing Caption Biologically-inspired flapping-wing robots are shown. Credit Pakpong Chirarattananon et al. 2014 <i>Bioinspir. Biomim</i>. 9 025004 Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.