Bristle Worm Larva Cilia (IMAGE) Max-Planck-Gesellschaft Caption A 3-day old larva possesses several bands of cilia for swimming as well as three pairs of bristles (the front part of the animal is showing upwards). Credit MPI f. Developmental Biology/ N. Randel 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.