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Fraternal twins (and other multiples) occur when the female ovulates more than one egg at a time and more than one is fertilized. Females that are overweight or older are more likely to ovulate more than one egg at a time. Fertility drugs encourage the body to 'drop' more than one at a time. And the tendency can be inherited.
What else can I help you with?
When did Mega Twins happen?
Mega Twins happened in 1990.
When did Dracula Twins happen?
Dracula Twins happened in 2006.
When did Chronos Twins happen?
Chronos Twins happened in 2007.
When did Cool Croc Twins happen?
Cool Croc Twins happened in 1991.
Do twins have to run in both the parents side of the family in order for a couple to get pregnant with twins?
No. Twins happen randomly, but if there is a high number of twins in the family, you are likely to have twins.
What might happen if an embryo did not completely split?
You will get conjoined twins.
What will happen if one sperm will fertilized two eggs?
You have twins
Can a chinchilla have a set of twins?
Yes. I own a set of twins. I believe that twins happen more often than in humans, but still uncommon. I can't remember where I read this.
Who are more likely to have conjoined twins?
This anomaly can happen to anyone, it is not genetic.
Does identical twins have to run in the family?
Identical twins do not necessarily have to run in the family. Identical twins occur at random, when a fertilized egg splits into two embryos, and this can happen to anyone regardless of family history.
Can you be pregnant with twins but lose one while pregnant?
Sadly, yes, it can happen.
Do miscarriages happen in twins?
Yes, my sister just had a miscarriage and she was carrying twins. But one of the babies survived. If they are identical, then neither will survive, but otherwise one will
