Actually I saw a show about this. This whale was already dead when they fished it out of the harbor where it had drifted. And the the internal pressure of the whale caused it to explode on the way to wherever they were taking it. I'm not joking.
nah i seen that show too, about the whale it was already dead and the were taking it out some were to bury it because when it was lying dead in the sea it was attracting sharks,anyway the whale burst because of the head in japan all the gasses in it basically had no where to go bar out so when it was getting towed down the street it burst and it took about 4 month to get rid of the smell of whale guts.yuk ;0)