In a one-in-two-million phenomenon, conjoined twins in Indonesia were born fused together like a spider. Born in 2018, the twins share three legs, four arms and one penis alongside shared use of a bladder, rectum and intestine. There have only been a handful of Ischiopagus Tripus conjoined twins ever, with the Indonesian boys’ case noted in a US medical journal this week, the Daily Mail reports. Ischiopagus Tripus is when twins share three legs, where the third leg is often two fused together, alongside one set of shared external genitalia.