David P. Barash in the Los Angeles Times:
Current believers in creationism, masquerading in its barely disguised incarnation, “intelligent design,” argue similarly, claiming that only a designer could generate such complex, perfect wonders.
But, in fact, the living world is shot through with imperfection. Unless one wants to attribute either incompetence or sheer malevolence to such a designer, this imperfection — the manifold design flaws of life — points incontrovertibly to a natural, rather than a divine, process, one in which living things were not created de novo, but evolved. Consider the human body. Ask yourself, if you were designing the optimum exit for a fetus, would you engineer a route that passes through the narrow confines of the pelvic bones? Add to this the tragic reality that childbirth is not only painful in our species but downright dangerous and sometimes lethal, owing to a baby’s head being too large for the mother’s birth canal.