What's the meaning of fraternal twins? Fraternal twins come from two separate fertilized eggs that develop in the womb at the ...

Twins have long been studied to understand autism causes. — -- When Jenn Medvin asked her daughter, Avery, what she wanted to be as an adult, the 6-year-old gave a range of answers from doctor to ...

Twin intellectual and personality differences are essential to a well-developed sense of self. Identical twins and some fraternal twins look very much alike. Parents, close friends, and extended ...