To Anonymous poster: >Can someone describe vocalization as it pertains to insulinoma? One ferret >that lives with us groans a lot when she stretches and yawns. Ferrets with insulinoma literally scream when their blood sugar gets low enough. What you are seeing is not abnormal - I even have one ferret who sings in the litterbox.... Bruce H. Williams, DVM Dept. of Veterinary Pathology Chief Pathologist, AccuPath Armed Forces Institute of Pathology [log in to unmask] Washington, D.C. 20306-6000 [log in to unmask] [Posted in FML issue 1216]