Parasitic twin formed or wholly dependent on the body functions of the complete fetus. The independent twin is called the autosite. Parasitic twin A parasitic twin (also known as an asymmetrical or unequal conjoined twin) is the result of the processes that also produce vanishing twins and conjoined twins, and may represent a continuum between the two. Parasitic twins occur when a twin embryo begins developing in utero, but the pair does not fully separate, and one embryo maintains dominant development at the expense of its twin. Unlike conjoined twins, one ceases development during gestation and is vestigial to a mostly fully
Kalin Twins Kalin Twins The Kalin Twins (born February 16, 1934) were a pop music recording and songwriting duo, comprising twin brothers Harold Kalin and Herbert Kalin (died August 24, 2005 and July 21, 2006, respectively). The Kalin Twins, who were known affectionately as "Hal and Herbie", are best known for their 1958 hit "When". The twins were born in Port Jervis, New York. Originally discovered by Clint Ballard, Jr., the writer of many hit records such as "Good Timin'" for Jimmy Jones, and "I'm Alive" for The Hollies, the sibling duo had a couple of early recording flops. However, in 1958,