For me the answer to the question of whether abortion is right or wrong depends on the ontological status of the fetus. Is a fetus the kind of being that has a right to live or is it not? I don't know. How on earth can I know that? If I knew then I wouldn't be an agnostic on this issue. Most people, if I am not mistaken, take it for granted that a new born baby has the kind of being that gives it the right to live. So what reason is there to think that a young baby has the kind of being that gives it the right to live? What about an older baby or an adult...if we can stretch this question to its limits.