The percentage of twins are born at a rate of 3.22 per 1000 pregnancies. These are bases on a statistical study from 2007 and the percentage has been unchanged from 2005 and 2006.
1 out of 1000 babies born in the United States are born with spina bifida
12 % of babies born are premature
One out of 20,000 babbies are born with angelman syndrome.
A female moose usually calves once per year, and has one calf at a time, twins are rare.
1 in every 1,000 babies that is born. 1 is the Down syndrome and 1,000 is the people that dont.
twins
A set of twins (2 babies) is called twins. Seven sets would still be twins. 7 babies born together (not twins) would be called septuplets.
twins
They are babies that are born in the same sac.
when two babies are born at the same time are callled twins!
20 babies born at the same time
two babies born at the same time are called twins
Two babies born at the same time are called twins.
Twins.
Conjoined twins
YES! The term twins refers to how the baby developes, not when, or the day, that the baby is born. For example, if there are two babies within the womb (fraternal or not) at the same time, they will be twins.
Four babies born at once are quadruplets.