That's heart breaking to read - some thing is definitely disorientating them. Here in Australia just this week there has been a first ever sighting of pods of killer whales in Hervey Bay, and they should be able to navigate shallow waters but locals are saying they are confused and some of the pod have become stranded. Fortunately I think the locals are on to it and are helping to guide them back, but some things up !? Military sonar does seem to make sense. I'm going to watch to see how this is followed up. Thank you for post Trinity x