Two heads, two spines, one body. Conjoined twin girls were born at a hospital in southwestern China on Thursday. The AP reports that the girls, born to farmers, weighed 9 pounds, measured 20 inches, and share many organs, though they each have their own spine and esophagus. Local media quoted doctors as saying it would be nearly impossible to separate them, though the girls have been transferred to a hospital in a nearby city to be examined by experts. (More conjoined twins stories.)