Wilma Cagle and Welthy Senn, identical twins who turned 100 in November, begin each day together in the same house in ...

For more than a century, scientists have debated whether intelligence is mostly a product of nature or nurture. Identical twins—those born with the same genetic blueprint—have long been the perfect ...

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 ...

Two sisters now have two birth days in common after having babies on the same day at the same hospital. Identical twins Rachel Schmidtberger and Lindsey Denny have shared nearly every milestone in ...

Have you ever imagined you’re mysteriously tied to a long-lost, identical self? I have. Thomas, after all, means “the twin” ...

Twins may often make you imagine two babies with the exact physical features, such as eyes, smile, and even voice. However, this is not the case with every twin, as some look totally different from ...