Cinematic-MRI shows twins vying for legroom in utero. Dec. 3, 2012— -- Sibling rivalry can apparently begin even before birth and researchers in London have remarkable footage of twins fighting ...

This post is part two in a series. Find part one here. Twin closeness is inevitable. I have said frequently that twins are born married. Sharing psychological and physical closeness, they measure ...

The most commonly asked question from twins who visit me online or in person goes something like this: “My twin and I have not spoken to each other in years because we cannot agree on how to get along ...