June and Jennifer Gibbons were known as the 'Silent Twins' as they only spoke to each other and their dolls - their lives ...

Twins develop language very differently than single children because of their profound relationship with each other. Early language acquisition in twins is very crucial to the development of their ...

In very, very rare cases, your twins may be conceived through superfetation, when eggs from two separate menstrual cycles are released, fertilized, and then implanted in the uterus. These twin babies ...