Female Rotifer (Brachionus) (IMAGE) Marine Biological Laboratory Caption A female Brachionus manjavacas rotifer, carrying four large eggs. The hair-like cilia at the top are used for swimming and filter feeding, while the tail-like 'foot,' ending in two small toes, is used for defense and attachment. Credit Michael Shribak and Kristin Gribble Usage Restrictions Please use with proper credit. 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.