The Oldest Conjoined Twins Ever Ronnie And Donnie Lived To Unprecedented Age Of 68. Conjoined twins are an extremely rare phenomenon, estimated to occur once in every 50,000 pregnancies. Around 70% of conjoined twin births are female, and a large majority are either stillborn or die within a day. Given this, the birth of healthy twin boys Ronnie and Donnie Galyon, fused together in the womb at the abdomen and pelvis, defied all odds. The brothers continued to beat the odds throughout their lives, eventually becoming the oldest conjoined twins ever recorded. They were 68 – over five years older than the previous record holders – when they passed away in 2020. Born in Dayton, Ohio, on 25 October 1951, Ronnie and Donnie spent the following two years in the hospital, with doctors ultimately deciding that they could not be safely separated. The twins each had their own heart, stomach, liver, lungs and kidneys, as well as their own set of arms and legs. Their anato...