Here is more to consider about taming animals. After the flood in Genesis, animals were filled with the fear of humans*. Their fear protects them, and also protects us from predators because animals (like humans) will be accountable for shedding human blood**. Once we remove their natural fear by taming a predator, we remove the protection afforded us from attack, and it would be foolish to believe their predatory nature would fully change as a result of our efforts to tame them. Their fear may be removed (and perhaps ours), but not necessarily their instinct to hunt. Consider even the predatory behaviour of our domestic pets, less apt to hurt us because of their size, but still instinctive nonetheless. Consequently, I think we share responsibility when we remove the fear and dread from an animal that can hurt us, and it subsequently does. Pride can lead us to believe we can succeed where others have failed.
* Genesis 9:2-3 (NIV) 2 The fear and dread of you will fall upon all the beasts of the earth and all the birds of the air, upon every creature that moves along the ground, and upon all the fish of the sea; they are given into your hands. 3 Everything that lives and moves will be food for you. Just as I gave you the green plants, I now give you everything.
**Genesis 9:55 And for your lifeblood I will surely demand an accounting. I will demand an accounting from every animal. And from each man, too, I will demand an accounting for the life of his fellow man.