I have written before on how we know the unborn are persons from fertilization. But now I’d like to address how we know the unborn are biological members of our species from fertilization. This is a basic, undeniable fact of science and yet I still encounter many people who deny this reality.
Before you can even answer the question of whether or not abortion is moral, you must first decide what the unborn is. For as Greg Koukl of Stand to Reason observes, if the unborn is not human, then no justification for elective abortion is necessary. It would be no different from having a mole removed or a tooth pulled. But if the unborn is human, then no justification for elective abortion is adequate.