I have two aunts who are twins. Apparently the US and europe have similar rates of twin birth - 9 to 16 per 1000 lives.
Wow I had no idea the rate was so low, do you know what kind of different twins are possible? I think fraternal is one kind for instance.
Yes, there are a couple of types. There's identical (they develop from on zygote which splits) and Fraternal, which means they develop from separate eggs. Quite fascinating.