For identical twins Dick and Bob Gibbs, it would be the start of a combined 60-year military career. The men were 20-year-old ...

Twins are often thought to have a close bond, even more so than other siblings. But some take this bond to dark places as ...

A new update, led by researchers at the UNC School of Medicine and the Gillings School of Global Public Health, describes ...

Scarlett Johansson made rare comments about her bond with brother Hunter Johansson in an exclusive E! News interview after ...

From Romulus and Remus—the myth of the twin brothers who founded the city of Rome—to the synchronized speech of Australia's ...

A study involving more than 1,000 twins suggests that the environment during very early life plays a more important role than ...