Note that there isn’t that coherent of a line between more intelligent mammals and human babies.
Bet: If you give me 1,000 pictures each of fully developed chimpanzees, dolphins and some newborn babies (none of which have any birth defects) I will be able to distinguish between every one. (I will then assign moral weight consistently according to the principle “My species matters more so there!”)
Bet: If you give me 1,000 pictures each of fully developed chimpanzees, dolphins and some newborn babies (none of which have any birth defects) I will be able to distinguish between every one. (I will then assign moral weight consistently according to the principle “My species matters more so there!”)
RichardKennaway made a similar comment and I replied here.