Re: Former WTA player Mirka delivers twins again！！
Originally Posted by Soliloque
I love how most people give Roger the credit like Mirka is completely stranger to that achievement.
Yeah. Especially since medically it's considered the other way around.
The strongest clues we have--that it is confined to fraternal twinning and females--suggest that the primary cause is an increased risk of multiple ovulation, in which a woman releases two or more eggs in a given menstrual cycle rather than the normal one.
__________________ “Nonviolence means avoiding not only physical violence but also internal violence of spirit. You not only refuse to shoot a man, but you refuse to hate him.” – MLK