Ooh, that's a dangerous line of thought. We certainly do respect rights of people who aren't smart enough to understand them; we also protect the welfare of ani

Ooh, that's a dangerous line of thought. We certainly do respect rights of people who aren't smart enough to understand them; we also protect the welfare of animals in other ways despite their not being able to comprehend that we generally choose to treat their health and comfort as a "right". The personhood horizon doesn't lie on a speciation boundary, and "rights" as extended by us go much further.