We have all seen twins, some of us even have one! While whenever the word "twins" come to our mind, we think of fraternal or identical pairs. But did you know that there are many other types and ...

Twins are taking over! These days, around 31 out of every 1,000 babies born in the U.S. are twins, according to the Centers for Disease Control and Prevention (CDC). Back in 1980, only about 19 in ...