An egg is fertilized by semen. Ladies donвЂ™t need certainly to orgasm to reproductively be successful. However in previous animals, one thing comparable is necessary to ovulate. Spike Walker/Wellcome Images.I tвЂ™s tempting to hear womenвЂ™s publications and think feminine sexual climaxes really are a little pleasure to replace with durations and maternity, whatever they might phone the raw end of DarwinвЂ™s deal. But research posted Monday suggests that as animals developed from solitary animals to societal people, ovulation became more automated, and both the orgasm as well as the clitoris destroyed their roles that are reproductive.