Have you seen NZ on the news over the weekend? Sadly over 500 pilot whales had stranded themselves at an area at the top of the South Island called Farewell Spit. It is a shallow Bay, and once up on the sand they have to wait until high tide to try and re float them. Hundreds died this weekend and the saddest part was that many of them had to be humanely euthanized, as the calls if the dying whales was drawing more of them to the beach, where they would be also stranded. Heart breaking stuff.
No one knows why this happens and why so many have done this.