Human Sperm Cells (IMAGE) University of California - San Diego Caption A fluorescence micrograph of isolated human sperm cells, taken by Albert Tousson, 2002 Nikon photomicrography contest winner. Credit UC San Diego Health Sciences Usage Restrictions No restrictions. License Public Domain 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.