We know that this whale was very sick before it died and possibly when it swam up river; if so, I wonder if it vomited? I bet it did. I am very tempted to go and have a wonder along the local foreshore this evening and see what I can find. If it's any of this stuff (link below) then I could well be rich.
http://news.bbc.co.uk/1/hi/world/asi...ic/4642722.stm