Professionals assume that ancestors of people have lost their bones in the penis over time, as they have built more monogamous relationships. It is remarkable that one language man claims that God created Eva not from the rib, but from a penis bone that never happened in time. Bakulum (she's a dowry, or a bladder, bone) is described as "the most diverse bone of all known," which is very different in length, width and shape for different male mammals.
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