Why do human males have such large penis's compared with other primates?
Anonymous No.4885568 View ViewReport Quoted By:
I've noticed that the penis on most apes, and come to think of it most mammals, tends to be small proportionately when compared to us. Why is this? Does it have to do with being bipedal? Was this a trait chosen through female selection? Could it be deduced that the males of species more closely related to us (ex Neanderthal) share this feature?