And a big Happy Birthday to the greatest sister and aunt in the world. Thanks for being our biggest fans and always looking ...

Rory and Camilla Turnbull were born identical twin sisters. Now that Rory has come out as trans, they’re learning to navigate life as brother and sister for the first time.

Twin siblings experience a lot together, but only one set of twins can say they have been dealt to a new MLB team hours apart.

Being funny and the appreciation of humor differs across people. Humor involves creating funny remarks, generated funny ideas, and eliciting laughter. Humor production does not seem to have a genetic ...

This event – the 20th Congress of the International Society of Twin Studies (ISTS) and the 8th World Congress on Twin ...

Kim Perell says it was hard growing up with a twin sister. She encourages her twins to be individuals and not compare ...

A mum from Pennsylvania was shocked by how different her twin babies looked just four months after giving birth but it is not unusual for twins to show distinct physical differences as they grow ...

"We're not identical twins, we are actually fraternal twins." She further commented: "I appreciate the concern but nope, we are fraternal. "I don't know, I think to Yas and I, we can appreciate that ...

If you've ever wondered why your newborn seems hardwired to cry for hours while your friend's baby settles easily, new ...

While most twins are fraternal or identical, science reveals a captivating array of rarer subtypes. With proper prenatal care, many risks associated with twin pregnancies can be managed effectively.

There are many famous twins in Hollywood and the music industry. From Mary-Kate and Ashley Olsen to Ashton and Michael ...