This animated short shows the development of boys up to and during puberty. It depicts the typical external changes that occur with the onset of sexual maturity, the structure and function of the sexual organs, sperm formation and pollination.
2013
1929
1999
1895
2008
1987
2018
1989
1965
2015
1933
2010
1957
2016
2005
1963
1992
1962
1966
