Tmu_SEM_Burrows.jpg (IMAGE) University of Toronto Caption The protozoan Tritrichomonas musculis as seen under a scanning electron microscope Credit Kyle Burrows/University of Toronto Usage Restrictions N/A License Original 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.