When they met,each was wearing a beige dress and a brown jacket.Blue was their favorite color.They both liked their coffee cold and black.Well,perhaps,that isn't very suprising,is it? But how about these similarities? They both met their future husband's at the age of 16 at a dance.They both fell down some stairs at the age of 15,and later they had problems with their ankles.And to scientists who studied them,they had similar personalities:they were talkative,and they laughed a lot.Because of this,they got their nickname,the "Giggle"twins.
Scientists like to study study such cases of twins.They want to answer the classic question,"What's more important—heredity or environment?"Studies with twins like the Giggle twins seem to make a case for heredity,don't they?The twins grew up in different environments,but still the twins are very similar in many ways. But are all the similarities just coincidences? What do you think?