20 ore 30 min, 27 apr 2002 anni - Weeks 1-3
Descrizione:
Millions of sperm cells are released into the fallopian tube of the female during ovulation. These cells then begin to try to penetrate the egg to create a baby. However, one only sperm cell will bond with the egg to form a zygote.
Aggiunto al nastro di tempo:
Data:
20 ore 30 min, 27 apr 2002 anni
Adesso
~ 23 years ago