Top 10 Thing You Don't Know About Twins

Here are some fun facts about twins.

The items in this list have been selected by the author of the list for you to vote and comment on.

The Top Ten

1 If one of your parents has a twin brother or sister, you have the same chances as your grandparents of having twins.

2 Monozygotic twins share 9.99% of their DNA, not 100%.

3 The incidence of double pregnancies (excluding in vitro fertilization) is 1 in 100 pregnancies, triplets 1 in 1400 pregnancies.

4 Sibling twins are no more alike than siblings

Twin siblings (ie two eggs fertilized separately) may look identical or completely different, even with different skin colors. It's basically a genetic role of dice that the genes every baby will receive from mom and dad (just like with the singletons).

I feel like this specific test study should be reexamined in regards to that/this

5 Heterozygous twins passed down from generation to generation

6 It is also known that twins often develop their own communication codes, which only they can understand.

7 It is said that healthier mothers have twins.

A study in the Proceedings of the Royal Society B focused on mothers in the 1800s and suggested that "twins could be an evolutionary adaptation in which healthy mothers have the opportunity to pass on their double genes at the same time."

this needs further observation investigation research to fully confirm that/this

8 Animals can distinguish identical twins even when humans cannot

9 The twins have the same fingerprints

10 Cesarean section is available in twin pregnancies