Shocking Anatomy
While Abby and Brittany appear to share a single body, they actually each have their own heart, pair of lungs, stomach, kidneys, gallbladder, spine, and spinal cord. This is something that happens in the womb, as conjoined twins are formed when a fertilized egg fails to separate, which is why they end up sharing some body parts. But they were one in the same in their lower extremities, how could this be?!