Have you ever considered that you drink another animal's milk, and it’s normal?

I'm not particularly surprised by this outcome as milk always seemed like a pragmatic source of supplemental nutrition for certain cultures which was gained for free with keeping animals for meat, and in a time before greenhouses, overseas imports, canning, etc., I imagine you'll take what you can get to round out a diet at certain times.

If you feed that to a newborn, they will become somewhat retarded.