Gabrielle Taylor’s viral TikTok on how doctors told her identical twins apart before birth has every parent of multiples ...

Triplets Andrew, Quentin, and Joel Meloff were born just 45 seconds apart, one after the other, in 1994. When someone in the delivery room asked about the boys’ middle names, their parents, Suzanne ...

A sibling can change your life — potentially even before birth. The sex of one fetus can affect its neighbors in the womb. The "intrauterine position effect" was first discovered in cattle farming. A ...

UK researchers have found that someone's love of the sauce may be linked to testosterone exposure in the womb -- which has a distinct effect on baby's hand development. Getty Images/iStockphoto ...