One twin got colon cancer at 21. The other didn't. Their story illustrates the mysterious nature of the rise of colon cancer ...

When you’ve just had identical twins, it’s normal to spend a lot of time looking down at their squishy little bodies and analyzing every subtle way they differ from one another. Unlike fraternal twins ...

The notion that twins do everything together has met a new standard. Identical twin brothers Pablo and Julio Delcid, 21, underwent matching heart surgeries on the exact same day following their ...

Despite looking very much alike, no two people are exactly the same; not even identical twins. And I don’t mean the fact that they have different personalities. They often differ in regards to their ...