Like a scene from Clash of the Titans, these bowsers (they were BIG...) finally came to blows when they couldn't settle a territorial dispute verbally. I got to spend a day on the shore of the beaver swamp at The Tourne and learned a great deal about the behavior of these goliaths. Highly recommended if you have the time. The "action" is pretty sparse, they spend a lot of their time floating motionless in the duckweed, but these disputes are pretty exciting when they occur.