There are thousands of worlds, there are no wonders. Two-headed creatures don't seem to be unusual today. People have seen the two-headed snake, the two-headed turtle, but today I want to talk about a two-headed sister.
First of all, why do twins form?
A single fertilized egg is not completely separated when it forms an identical twin. However, there are very few twins in the world who can grow up.
Abigail and Brittany were a pair of two-headed sisters who shocked the medical community when they were born. After examination by scientists, the two-headed sister had two hearts, two sets of lungs, and two stomachs, but only one liver and one reproductive system. That is to say, their upper body develops independently, and the lower body can only be used.
They will also have their own emotions and thoughts:
Through understanding, one of the sisters likes dark clothes, the other likes light clothes, one likes to listen to music, and the other likes sports. Although both parties understand each other very well, there are sometimes conflicts, such as one sleeping soundly and the other remembering. Because they are two completely different individuals, they can only share a lower half.
Miraculously, they all survive today. Either way, it's an unfortunate thing. I only wish the two of them had a better life.