Abigail "Abby" Loraine Hensel an Brittany "Britty" Lee Hensel (born 7 March 1990, Carver County, Minnesota, United States), are highly symmetric dicephalic parapagus conjoined twins, and further, tribrachius, bipedus. They have two spines and separate half-sacrums, which converge distally within a slightly broad pelvis. They each control and sense their corresponding arm and leg; a third, rudimentary central arm was amputated in infancy.