What IS good, and how do we determine it?

[Wyrd of Gawd]

Because animals, in most countries, are still considered items by law. Which speaks louder about our disrespect than it does about our superiority.

So you think an animal who kills her babies should spend time in prison in the same way that a human who killed her own babies should? (assuming she was not insane)

According to the Bible it's not wrong for parents to kill their children.  As a matter of fact it's demanded that they kill their children in certain situations.  And when all else failed they could simply claim that the kid was a witch.  So it's all good.