There’s both fact and fiction to the rumors that twins run in families and tend to skip a generation. Here’s how heredity impacts your odds of conceiving twins.

Fraternal or dizygotic twins develop from two different eggs fertilized by separate sperm; they generally share about 50 percent of their genes. Therefore, fraternal twins are essentially like typical ...

For the best experience, please enable JavaScript in your browser settings. Scientists describe twins as two beings who share the same uterus at the same time. They ...

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 ...

Identical, or monozygotic, twins develop from the same fertilized egg that splits into two. These twins are the same sex and share the same genes. Sometimes called paternal twins, identical twins ...

It was my third pregnancy, and when my bump grew faster, I assumed it was because I had done this before. It turned out I was pregnant with twins. They refused to take a DNA test now as adults to find ...

What is clear is that the Measles, Mumps and Rubella Vaccine and the vaccine preservative thimerosal are not causal factors.

I never believed in love at first sight until I met my now-husband. I couldn't recognize him from his identical twin brother over the phone. We ended up having fraternal twins, and I got to experience ...

NASSAU COUNTY, Long Island (WABC) -- They say twins have a special connection and for these twins there's no doubt. "Super excited of course. It's a great honor to be named 'Val' and 'Sal" together," ...

They refused to take a DNA test now as adults to find out if they are identical. When my baby bump began growing ... consider a $119 cheek swab to determine if he was indeed a fraternal twin, he ...