The trouble was, humans had been domesticated by their own hand. Humans had given up violence as a way of life, and that was a good thing; that was the reason they had civilization and universities and scientific missions, rather than living in a great chasm in the earth, mirroring their aquatic cousins. But the sirens had never domesticated themselves. The sirens were still nature, red in tooth and claw, and while they might die, humans died so much more easily that it was almost comic.