Yes. They used to be called Siamese twins but that was changed to conjoined twins for political correctness. They are twins that are born joined together by some part of their body due to the egg bot completely separating during pregnancy.
Identical twins born with their bodies joined at some point and having varying degrees of http://www.answers.com/topic/residual duplication, a result of the incomplete division of the...
Conjoined twins are identical but attached to each other and may share organs depending where they are attached to the others body. Conjoined twins are attached because the egg cells have not...
Chang and Eng Bunker ( as I recall, no relation to Archie) were the first pair to survive to adulthood and they hailed from Siam. (they were male) hence the name. It is a congenital anomality and is...