Conjoined twins of one or both of the twins, particularly if they are joined at the head or share a vital organ. This makes the ethics of surgical separation, where the twins can survive if not separated, contentious. Alice Dreger of Northwestern University found the quality of life of twins who remain conjoined to be higher than is commonly supposed. Lori and George Schappell and Abby and Brittany Hensel are notable examples. The first record of separating conjoined twins took place in the Byzantine Empire in the 900s. One of the conjoined twins had already died, so surgeons attempted to separate the
Stieber Twins Stieber Twins The Stieber Twins are a duo from Heidelberg, Germany, consisting of the brothers Martin (Marshall Mar, a.k.a. Martin Jekyll) and Christian (Luxus Chris a.k.a. Christian Hyde). They are known as graffiti artists, breakdancers, rappers, hip hop producers and DJs. The twins have been active since about 1983, and the two have been producing hip hop music since 1992. Their first instrumental was on the album "Alte Schule" ("Old school"), the first songs which featured the twins rapping were "HipHop und Rap" ("HipHop and Rap") and "Allein zu zweit" ("Alone Together") and were released in 1995 on the album