Parasitic twin 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 formed, otherwise healthy individual twin. The undeveloped twin is defined as parasitic, rather than conjoined, because it is incompletely
Brewer twins the World" by "People" magazine in 1998. They have worked with photographers such as Bruce Weber, Steven Meisel, Tiziano Magni, Claus Wickwrath, Randall Mesdon, Marko Realmonte and also with model Cindy Crawford. They have appeared on the covers of "Glamour", "Esquire", "Mizz", "Sassy", "Dolly", "Student Life", "Vogue", "Fortune" amongst others., They are also amateur surfers and snowboarders. In 2003 they moved in the insurance business and opened their own insurance agency in 2013 in Redondo Beach, CA. Brewer twins Derek and Keith Brewer, known as the Brewer Twins, are male models. The twins were born on September 21, 1973, at