Dicephalus parapagus dipus
In dicephalus parapagus dipus, the two heads are side by side, on a torso with two legs, with varying levels of twinning of organs and structures within the torso. The shared body may have four arms altogether, or three arms, or two arms only. There are Greek-based medical terms for the variations, e.g. dibrachius means two-armed, tribrachius means three-armed. Both heads may contain a fully formed brain, or one may be anencephalic. If carried to term, dicephalus parapagus twins are usually stillborn, or die soon after birth. Survival to adulthood does however occasionally occur in cases where the twins are born with three to four arms. Chances of survival are improved if two complete hearts are present. Separation surgery is contraindicated, except in cases where one of the twins is clearly dying.Giacomo and Giovanni Battista Tocci (born between 1875 and 1877), were dicephalus parapagus dipus twins who survived to adulthood. Each had his own pair of arms. They learned to speak several languages, but never learned to walk. Abigail and Brittany Hensel, born in 1990, are another instance of dicephalus parapagus dipus twins who grew up. They were born with two functional arms, plus a vestigial third arm, which was surgically removed. Each twin has her own complete head, heart and spine, and controls one arm and one leg. They developed good motor skills, and completed courses at school and university.
A full taxidermy of a two-headed calf can be seen advertising ice cream for College of the Ozarks in Branson, Missouri, where it was delivered by the students. Two full body taxidermies of two-headed calves can be seen at the Huron County Museum in Goderich, Ontario. A full taxidermy of a two-headed calf is on display at the Miami County Museum in Peru, Indiana
A full body taxidermy of a two-headed calf is on display at the Finnish Museum of Natural History in Helsinki
A taxidermy of a two-headed calf can be found in St. Petersburg, FL in the U.S. at the St. Petersburg Museum of History. A two-headed calf is displayed at the Bay Beach Wildlife Sanctuary in Green Bay, Wisconsin. The Woolly Mammoth Antiques & Oddities shop in Chicagos Andersonville neighborhood displays a two-headed calf named Brussels Sprouts, originally from Belgium. Pigs
The Deformed Animals Museum of Llubí, Spain, preserves a two-headed pig. A preserved two headed piglet can be seen at the Museum of Witchcraft, Boscastle, Cornwall, England. A two-headed piglet can be found at the Old State House in Hartford, Connecticut. In 1998, Rudy, a two-headed pig, was born in Iowa. A two-headed piglet appeared on one episode of Oddities. A two-headed piglet was a display at the Stearns County Museum in St. Cloud, Minnesota, until the mid-1970s, but cannot be confirmed; it may have been creative taxidermy. Goats and sheep
In 1577, a lamb with 3 heads was born in Blandy, France, and illustrated in Ambroise Pares Of Monsters and Prodigies.