QUINCY, Ill. -- Two unique twin sisters just celebrated their first birthday! Bi-racial twins Kalani and Jerani were born with two completely different complexions and instantly became social ...

Stacy Omirin got the surprise of her life when she gave birth to twin boys in February 2019. Omirin knew she was carrying two babies — but she never imagined they would have different skin colors.

I hardly believed they were twins! Several years ago, one of my developmental psychology students told me that she had a fraternal twin sister who looked nothing like her, and it turned out that she ...

Behavioral and physical differences between identical twins are fascinating because they are unexpected. Many people assume that when identical twins differ they do so because they are treated ...

When we think of identical twins, we often imagine mirror images — same face, same smile and perhaps even the same talents. But what surprises many is that these genetic carbon copies can have ...