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Siamese Twin Facts

Siamese Twin Facts - Reviewed by Kidzworld on Dec 27, 2006
( Rating: 1 Star Rating)

Everything you want to know about siamese twins: the science behind conjoined twins, how they separate conjoined twins like the Bijani sisters from Iran and a celeb who was born as a siamese twin.

Whether you see them on the street or on CNN, Siamese twins are hard to ignore. Conjoined, or Siamese, twins are attached to their identical twin at the head, chest or back. It's hard to believe that this amazing phenomenon is the result of some pretty simple science.

How Siamese Twins Develop

Siamese twins develop the same way that identical twins do - with one major difference. While identical twins (twins who look exactly the same) are formed inside a woman's uterus (womb) when a fertilized egg splits in two, Siamese twins form when the egg starts to split but stops part way through. Each side of the partially divided egg turns into a fetus (unborn baby). Siamese twins occur in animals - such as cats and snakes - not just people.

How Common Are Siamese Twins?

Siamese Twins are extremely rare. They occur about once per 100,000 pregnancies. Often times, only one half of the attached eggs will develop into a baby, while the other side doesn't, so babies are sometimes born with the undeveloped twin attached to them.

Separating Siamese Twins

No matter how they look on the outside, Siamese twins are two different people with different ideas and interests. Normally doctors will try to separate the twins if they can. The success rate of these surgeries vary depending on where the twins are attached and what organs they share, but it's usually pretty risky. In 2003, 29 year-old Siamese twins from Iran had surgery to be separated but both died. However, about 75 percent of separations are successful.

Siamese Twins - Did U Know?

  • Siamese twins get their name from the famous conjoined twins Chang and Eng who traveled with the Barnum and Bailey circus in the 1800s. They were from Siam, now known as Thailand.
  • The first successful separation of Siamese twins occurred in 1956.
  • Actor Andy Garcia (The Godfather III) was born with his undeveloped twin brother attached to him.
  • Most Siamese twins are female.
  • Most Siamese twins are attached at the chest.

1 I think that it was sad that the twins died. I feel really bad. The thing that really surprised me was that they took the risk and both of them died.

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Nickname: sk8ergirl4avril
Age: 10

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General In The Forums

Miss_Mouse
Miss_Mouse posted in Random:
"I cry every night" NOT TRU lmaooo
reply 19 minutes
Abbergrl
Abbergrl posted in Random:
This is gonna be terrible lolz, I'm definitely gonna make one!
reply about 1 hour
Abbergrl
Abbergrl posted in Say Anything:
It's terrible when people do that but guess what they're all lame. Lol they really are. And I agree, you don't need to have similar interests to be friends. Just be friendly and nice and a start conversations if you want. And maybe you'll get new friends :3
reply about 1 hour
Miss_Mouse
Miss_Mouse posted in Random:
These are gr8
reply about 5 hours
Nandez
Nandez posted in Debating:
"sugarpetals" wrote:What does a thirteen year old kid even know about their sexuality and coming out? At this age you've just hit puberty and sure some of you might be more mentally matured, but you're thirteen, you're now being exposed to those kinds of things and your hormones might start kicking in and you'll maybe feel different ways to different genders and people but i really do think that thirteen is a much too young age to decide, and to "come out". I respectfully disagree. this is how I think of it. Being gay happens it's not like you wake up one day and you want to be gay. It justs happens, some people come out when there younger like around 13 ish others come out sometime later. It is a confusing subject and because it's only relitvaly new concept. I think personally people should just accept the fact because for many people it's hard for people to come out because of how people look at them. People should leave an open mind because with that at least you can help and give support to those who are struggling to figure this out. Not to take this personally everyone is entitled to their own opinions this is just an explication to hopefully make it somewhat clearer. I am not gay myself but i have many friends who are so I opinion will be different than yours which is perfectly acceptable. 
reply about 6 hours