they both met their future husband at age 16 at dance. they both fell down some stairs at the age of 15/ and later the had problems with their ankles. and to scientists who studied them, they had similarity personalities: they were talkative,and laughed a lot. because of this, they got their nickname, the "Giggle" twins
Scientists like to study such case 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 the? the twins grew up in different environment, but still the twins are very similar in many ways. but are all the similarity just coincidence? what do you think?