One of the first things pregnant people wonder is whether or not they'll have twins. According to the Centers for Disease Control and Prevention (CDC), the likelihood of a pregnant person having ...

This post is part 1 of a series. From the moment twins are born, comparisons are obviously unavoidable. Mom, at first glance of her twin babies, says, “Look how alike they are. How will we tell ...

Not many twins can say they have different birthdays, and even fewer can say they have different birth years. There is about a one in 2 million chance that twins will be born in different years ...

Conjoined twins Marieme and Ndeye Ndiaye seem to be as similar as any two people can be, physically and genetically, but to their dad, Ibrahima Ndiaye, says the 6-year-olds couldn't be more different.

With bi-paternal twins, she said, each egg is fertilized by a different man's sperm. Hutcherson said eggs can live up to 24 hours in a woman's reproductive system.

There are three types of identical twins: Monochorionic twins are more typical when it comes to identical twins, while monoamniotic twins are very rare. But dichorionic twins are the most common type ...

When twins know they are very different people, fighting, which leads to estrangement, will be more preventable. While raising twins is a challenging responsibility, being a twin is no walk in the ...