On my 500+ list of all-time fav songs!
I can't find anything on the internet about this, but I recall the previous video ("Epic") had a fish dying at the end. When the band was asked about it, one of the band members replied something like, "Things die. Get over it." Animal activists went nuts, protesting. The next thing I remember seeing months later was the video for this song (you posted above) with the exploding fish at the end. I remember thinking, "This is probably the band's response to those animal activists." Sadly I can't confirm any of this. But that's what my dusty brain reports anyway!