Hal Whitehead and his wife, Linda WeilgartCarl Walsh
Whales involved in mass strandings show two different kinds of physical damage. Some suffer massing hemmorrhaging around the brain and spinal cord, top, and the acoustic fat of the jaw, bottom. Other have gas and fat emboli -- bubbles -- in major organs, including the liver, center.Illustration by Bart Vallecoccia; Insets, top and bottom, courtesy of Antonio Fernandez; center, courtesy of Nature Publishing Group
A mass stranding in the Canary Islands in 2002 provided strong evidence of damage from sonar.Vidal Martin (SECAC)