Falmouth dead dolphins: military sonar to blame?

The bodies were found at four sites on the River Percuil in south Cornwall on Monday. Rescuers guided some surviving mammals back out to sea.

The dolphins that died after beaching in Cornwall had ingested debris and mud, leading one of the [very stupid] scientists who examined them to compare their deaths to “mass suicide”.

The Royal Navy was doing live firing exercises involving a submarine in the area at the time, and the Ministry of Defence said one of its vessels had been using short-range sonar to scan the sea bed.

Naval sonar can generate noise up to 235dB - that’s one million times louder than the loudest noise any whale can make…

From The Guardianonline: watch interactive presentation