A 17-year old male bottlenose dolphin (Tursiops truncatus) housed in an open sea pen for 11 years was under observation for chronic low weight, anemia and a recent episode of severe colic. This dolphin expired suddenly during a physical examination. A postmortem was conducted at the site within two hours. Cause of death was not apparent based on gross examination of organs and subsequent tissue histopathology. Ulcerations with potential hemorrhages ...