Conjoined twins, also known as monozygotic twins, are siblings whose embryonic separation process was incomplete, causing them to share parts of their body or certain organs

Conjoined twins, also known as monozygotic twins, are siblings whose embryonic separation process was incomplete, 😱😨 causing them to share parts of their body or certain organs. 😨

Discover how they changed throughout this transformation. 👇👇👇

Generally, the fertilized egg divides around the sixth day after conception.

The recent passing of Lori and George Schappell, known as the oldest conjoined twins, shocked the world. They died at the age of 62 in their hometown of Pennsylvania, USA, on April 7 at the University of Pennsylvania Hospital, although the cause of death was not disclosed.

Born on September 18, 1961, in Reading, Pennsylvania, Lori and George were connected at the head, sharing 30% of their brain and some vital blood vessels. This condition, which is rare, affects only 2 to 6% of conjoined twins, according to NBC Today. George, who had spina bifida, used a mobility device that Lori drove and controlled.

In 2007, George made history as one of the first conjoined twins to undergo a gender transition, moving from a female to a male identity, according to the Guinness World Records. In an interview in 2011, during their 50th birthday celebration, he opened up to *The Sun* about his journey as a transgender man, sharing that he had always felt he should have been a boy.