Conjoined twins Conjoined twins Conjoined twins are identical twins joined "in utero". An extremely rare phenomenon, the occurrence is estimated to range from 1 in 49,000 births to 1 in 189,000 births, with a somewhat higher incidence in Southwest Asia and Africa. Approximately half are stillborn, and an additional one-third die within 24 hours. Most live births are female, with a ratio of 3:1. Two contradicting theories exist to explain the origins of conjoined twins. The more generally accepted theory is "fission", in which the fertilized egg splits partially. The other theory, no longer believed to be the basis of conjoined twinning,
Otherwise Known as Sheila the Great Tubman- Sheila's thirteen year old sister, who's a ballerina and is boy crazy Merle "Mouse" Ellis- Sheila's friend in Tarrytown, who is the junior champion of yo-yoing. She's a champion swimmer, and a dog lover Betsy Ellis- Mouse's four year old sister, who's also a champion swimmer. Since she's allergic to dogs, she has a make-believe dog called Ootch Sondra and Jane Van Arden- The Van Arden twins, who are good friends with Sheila and Mouse. They both are very excellent swimmers and both get easily offended. They all argue at a sleepover. Marty- Sheila's swimming teacher, who struggles to