I didn't say both sides are correct, I said both sides have an argument. In this case I believe the "human != animal" definition is clearly what was intended b

I didn't say both sides are correct, I said both sides have an argument. In this case I believe the "human != animal" definition is clearly what was intended but those who wish to argue that it shouldn't have been used have an argument, as in technical contexts (such as scientific journals), "animal" usually encompasses humans.