This video from Japan says about itself:
Fukushima Update -150 Dolphins Dead After Beaching Themselves in Japan
11 April 2015
Beached dolphins in Japan were found covering a six-mile stretch of beach in the Ibaraki region Friday morning. Nearly 150 of the cetacean mammals had beached themselves in the Ibaraki Prefecture along the eastern coast of the main island of Honshu. Less than one third of the dolphins were rescued.
These beached animals were melon-headed whales.
By Royce Christyn:
Dead Dolphins In Fukushima Stranding Found With White Radiated Lungs
1 week ago
Japanese scientists are saying they have never seen anything like what they discovered after autopsying a massive group of dolphins that ended up dead after being discovered stranded on a beach near the site of the 2011 Fukushima disaster.
Their lungs were white, which, according to scientists is an indication of loss of blood flow to the organs which is an indication of radiation poisoning.