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 can cause: 1  Pain in the upper middle abdomen that can radiate to the left or right shoulder or between shoulder blades. 2  A lump in the upper middle abdomen. 3  Loss of appetite, nausea. 4  Weight loss. 5  Jaundice [56,57] .