From Romulus and Remus—the myth of the twin brothers who founded the city of Rome—to the synchronized speech of Australia's "Twinnies" Paula and Brigette Powers, identical siblings have long inspired ...

Fetus had rare condition affecting blood flow in the womb, expectant dad said. — -- An expectant mom getting ready to welcome two sets of identical twins -- a one in 70 million occurrence -- ...

VALHALLA, N.Y. -- About 11 months ago, parents Maria and Daniel Sparano welcomed their twins Emma and Nina into the world. On Monday, for the first time, the twins finally got a chance to meet since ...

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 ...