Hi Jeremy,
A few years ago some sperm whales washed up close to where i used to live.
https://www.adelaidenow.com.au/news/...8df9e916a628db
The papers said they were probably chasing fish and got caught up in the shalows. Sperm whales are deep sea preditors and dont come in the gulf that they came up so they're wrong there.
I was speaking to a guy who was working on a oil exploration ship doing sonar and deep sea explosive devices about 100km away a week earlier.
May only been coincidence but i bet one of the whales had it ears and sonar blown out and got totally lost and the others followed.
It must be so hard for these animals to "listen" to the oceans with all these noisy boats around and us humans dumping plasic as we go.
Cheers
Andy