How is that nuts? Rape is about control, not sex, impregnating a woman is one way of maintaining control over her long after the sex act is finished, studies have been done to confirm this and its part of standard abnormal psychology doctrine unlike what Akin has claimed which is just bat#$%$ crazy.
Rapists subsconsciously target victims based on their likelihood of conception.
So there is no conclusion on the biological factors which may prevent pregnancy during rape, yet medicine has reached the conclusion that rapists subconciously choose to rape women who unknown to them are likely to conceive? How can they be so sure about one and not other.