The difficult journey of the sperm
0
0
14,311 Pogledi·
01/17/24
The journey of egg and sperm. There are a lot of casualties (deaths) among the sperm as they swim toward the egg. First, many get lost in the maze of a woman's uterus where they also have to contend with acidic vaginal secretions.
Prikaži više
0 Komentari
sort Poredaj po