• The Hogan twins, Krista and Tatiana, are thought to have the ability to see out of each others' eyes.
  • The conjoined Hogan twins have the ability to share senses, e.g. when you tickle one girl, the other girl laughs.
  • Statistically, the twins had a 20% chance of being born alive. If they beat that hurdle then there was a 75% chance they'd die within 48 hours.
  • Only two sets of craniopagus twins have reached adulthood.
  • Tatiana supplies blood not only for her own body but keeps her sister alive also - the blood volume being pumped by Tatiana's heart is at least 1/3rd more than that being pumped by her sister's heart.
  • In the case of Tatiana and Krista, earlier MRI scans suggested something unique in the human form. They have a well-defined bridge between the thalamus, the key-switching centre of the brain.
  • The twins' nervous systems are highly interconnected; their doctors reported that putting a pacifier in the mouth of one child could cause the other to stop crying.
  • Craniopagus twins are the rarest form of conjoined twins accounting for around 1 in 4 million births.
  • The Hogan twins share the same theatrical agent as Lori and Geoge Schappell, another set of conjoined twins who live in the United States.
  • Dr James Goodrich, a surgeon who appears in the documentary, is one of the few surgeons in the world who has separated craniopagus conjoined twins. In 2002 he carried out a ground-breaking separation of two Filipino twins, Carl and Clarence Aguirre over a series of 5 operations spanning a year.
  • It took the conjoined twins almost two a half years to learn to walk.
  • Tatiana, who had been struggling to breathe, had her enlarged adenoids removed. The normally routine operation at the Children's Hospital in Vancouver was, of course, more complex. Both girls had to be anaesthetized.
  • One of their favourite jobs is unloading the dishwasher. From one pair of hands to the other, to whoever is putting the dishes up in the cupboards.
  • The family has already made plans to enrol the twins, when they are of age, in the same school attended by their brother Christopher, 5, and older sister Rosa, 7. It's run by their Seventh-day Adventist Church.
  • In August 2007, it was declared the girls cannot be separated, due to the likelihood of the surgery killing or paralyzing one or both girls.

 

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