1.   How do mother mice know how to look after their babies when there is no one to tell them what to do?

2.   The mother mouse lay stretched atop the nine little babes, her eyes closed, her body asleep and unmoving, except for nine tiny pulses on her breasts.

3.   Usually the first thing a mother mouse does is devour the afterbirth, clean up the babies, and begin feeding them.

4.   The embryos were put into the wombs of mother mice, carried to term and were born.

5.   The resulting embryos were then implanted in mother mice and allowed to grow to birth.