Choanoflagellates Fusing and Mating (video) Cell Press Share Print E-Mail Loading video... Caption This video show choanoflagellates fusing as an early step in sexual reproduction after swarming. Credit Woznica et al. Usage Restrictions Credit required. Share Print E-Mail 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.