New Iowa Law Restricts Abortion To Before Most Women Know They're Pregnant

[The Industrial Atheist]

If a human has the mental capacity of a cat or chipmunk is it really a human in the ways that matter?

Are you saying that people with less mental acuteness are less human?

No, I'm saying that something that belongs to species human but that doesn't have human intelligence doesn't qualify. Basically if he/she can mentally do things that animals just cannot and has the human emotional experience. I don't see this as a slippery slope at all.
Also, if something is/isn't conscious/sentient.
You could I suppose, mention dolphins, but I would say there would be something more wrong about killing a dolphin(than most animals) unless it would cause more suffering for it (the dolphin) to keep living.
The death of animals is unfortunate, and I personally dislike killing anything. But we eat things that suffer more than aborted fetuses and that have equal or better mental functioning all the time. As others have said more eloquently, it causes more harm to disallow abortion.
Most aborted fetuses clearly have no ability to experience pain.
I don't think humans are that special apart from their mental/emotional faculties. If an animal could think and reason like humans, and had human emotion, I would pretty much consider that animal human in the ways that matter.
It's not about if something/someone is a more or less intelligent human. It's if they meet a threshold.