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 ...

I was known for being an identical twin, and that shaped my identity. We lived in a small town in Iowa, and no one could tell us apart. My husband's best friend is a triplet, so he understood that my ...

Elizabeth Williams, 3, peers at twin sister Alexa as her father, Marty, holds her while Joe Margotta swabs her cheek Wednesday afternoon as part of the King’s College twin study. Times Leader staff ...