Ame and Lia, Not Twins But Born On The Same Day to the Same Mother
Monday, June 30, 2008
LinkAn explanation for this unusual case:The girls were conceived through a process known as superfetation, the term used to describe the formation of a foetus whilst another foetus is already present in the uterus.
This occurs when eggs from two separate menstrual cycles are released, as opposed to normal non-identical twins where more than one egg is released in a single cycle. Although common in animals it is rare in humans, but it can result in a twin or multiple pregnancy. It is diagnosed when the foetuses show a marked different in development. The girls are technically not twins. Identical twins occur when one egg splits into two and non-identical, or fraternal, twins occur when two eggs are released and fertilised at the same time.











