I thought this was a new thread but still "hilarious" all the same I nearly cracked up just seeing the title but then "thought about" the subject and it's quite the question,in my view it "makes sense" concerning "formation" of either male or female because in essence adam gave life to eve by God's hand with adam's rib.
Also considering how women can give birth to"both genders" and also how both genders can have "variations" in the region mentioned it makes a lot of sense the origin of birth and life given.