Navy sonar linked to dolphin death? By Veronique de Turenne Los Angeles Times February 24, 2008

The death of a deep-diving dolphin near the site of controversial military sonar exercises last month throws the Navy's claim that it has never harmed a marine mammal in its 40 years of war games back into the spotlight.   

Although researchers have yet to determine a cause of death, a dissection of the northern right whale dolphin's head revealed blood and other fluid in its ears and ear canals. The same symptoms were found in deep-diving whales that washed ashore in the Canary Islands and the Bahamas after military sonar exercises.

No firm answers will be available until microscopic analysis of the dolphin's tissue is complete. This should take about a month, researchers say. Kenneth R. Weiss has all the details.