Roughly 40% of twins create their own languages.
I wonder how the other 60% feel.
Identical twins have different fingerprints.
Twins can have completely different skin tones.
Twins begin to interact at 14 weeks in the womb.
Despite sharing identical DNA, identical twins can develop different diseases.
Fraternal twins can have different fathers. This is a rare occurrence called heteropaternal superfecundation; when a second egg is released during the same menstrual cycle.
You are three to four times more likely to have a second set of twins if you have already had one set of non-identical twins.
The highest amount of identical twins and multiple births happen in Nigeria.
Twins can have different birthdays.
The longest birthday gap recorded so far is 63 days.
The mothers of twins tend to live longer.
The lowest rate is in China