The answer, for the most part, is fairly simple. Men have nipples because nipples develop in the womb before embryos become distinctly male or female. So by the time a Y chromosome kicks in to distinguish a fetus as male, the nipples have already secured their place.
Le 17 juin 2023 à 01:38:21 : The answer, for the most part, is fairly simple. Men have nipples because nipples develop in the womb before embryos become distinctly male or female. So by the time a Y chromosome kicks in to distinguish a fetus as male, the nipples have already secured their place.
Tu vois le trait qui sépare tes couilles en deux ? Même raison que les tétons, c'est ce qui peut se former en vagin ou non plus tard, à la base on a un corps assez similaire la nature ne va pas s'embêter à faire deux modèle ultra différents, on garde des vestiges du modèle opposé
Le 17 juin 2023 à 01:38:21 : The answer, for the most part, is fairly simple. Men have nipples because nipples develop in the womb before embryos become distinctly male or female. So by the time a Y chromosome kicks in to distinguish a fetus as male, the nipples have already secured their place.