Myosin 1D (IMAGE) CNRS Caption The molecular motor Myosin 1D creates asymmetry at all levels, from the movement of actin molecules (red and green filaments) to respiratory trachea (white tube-like structures), to the organism itself (here a Drosophila larva). Credit Photo of larva: Gaëlle Lebreton; photo editing by Stéphane Noselli / iBV / CNRS Usage Restrictions May only be used with appropriate credit and captions, to report on this research. 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.