You don’t. Because anything living deserves to be treated well. Just because it’
Not a human life, doesn’t mean it doesn’t matter. God wouldn’t have created other animals if he didn’t care about them and didn’t want them treated nicely. God notices even if one sparrow falls from the sky, or whatever that scripture is. Abusing animals or treating them unkindly is wrong-they are as innocent as children because they aren’t accountable for their actions....but we are. Why shouldn’t we treat them kindly and humanely?