A pair of identical twins got mistaken for mother and daughter by a stranger, all because of one tiny difference in their ...

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 ...

Metastable epialleles may sound like complex science, but they help explain why identical animals can still look and act differently. For years, scientists asked why two mice with identical DNA could ...

Discovered: The world's lightest material; babies understand more than we thought; even in the womb, identical twins aren't completely identical; superweeds are resistant to RoundUp. Germans break the ...

The 61-year-old sisters both got deep plane facelifts on the same day by the same Florida-based plastic surgeon Here they share a candid look at the process — from what sparked their decision to go ...

You can have three babies that are identical (if one egg splits into three embryos), three babies that are fraternal (if three separate eggs are fertilized), or two babies that are identical and one ...