More about Dolphin Echolocation. Sonar in Dolphins. An exploration of the sonar system of Tursiops truncatus. Dolphin Echolocation. How dolphins use sound by The Cardigan Bay Marine Wildlife Centre. This site includes a recording of dolphin clicks.
I also have shortness of breath hat I have had for about 4 months now coinciding with the back ache starting and digestion changes. ...I have been worried sick I have pancreatic cancer as my symptoms....
Pancreatic cancer may not cause early signs or symptoms. 1  Signs and symptoms may be caused by pancreatic cancer or by other conditions. Check with your doctor if you have any of the following: 2  Jaundice (yellowing of the skin and whites of the eyes). 3  Light-colored stools. 4  Dark urine. 5  Pain in the upper or middle abdomen and back.