20 ч 30 мин, 27 апр 2002 г. - Weeks 1-3
Описание:
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.Добавлено на ленту времени:
Дата:
20 ч 30 мин, 27 апр 2002 г.
Сейчас
~ 22 г назад
