SciShow
Why Do Men Have Nipples? (2013x195)
Fecha de emisión: Dic 20, 2013
If men can't nurse, then why do they have nipples? The answer has less to do with evolution and more to do with your personal development as a teeny tiny embryo. Short version: We're all girls -- at least at first. Hank explains!
- Estrenada: Ene 2012
- Episodios: 3614
- Seguidores: 2