Leopard (IMAGE) Wildlife Conservation Society Caption Osmotic pumps now help veterinarians to provide pain killers to big cats such as the leopard after surgical procedures. Credit Julie Larsen Maher (c) WCS Usage Restrictions One time-usage only. Must use with photo 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.