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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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Cloning: Cool Idea or Double Trouble?

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snoopynwoodstock123
Nope, don't know you.
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Xxnobody101
Xxnobody101 posted in Random:
if i knew you maybe
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TacosandChocolate
Don't know you, so no.
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JazzyRox
JazzyRox posted in Debating:
"Eri-Prime" wrote: TRUST ME. There used to be more.   Really? I Just looked it up and Here is what i found....: At the dawn of agriculture, about 8000 B.C., the population of the world was approximately 5 million. Over the 8,000-year period up to 1 A.D. it grew to 200 million (some estimate 300 million or even 600, suggesting how imprecise population estimates of early historical periods can be), with a growth rate of under 0.05% per year. A tremendous change occurred with the industrial revolution: whereas  it had taken all of human history until around 1800 for world population to reach one billion , the second billion was achieved in only 130 years (1930), the third billion in less than 30 years (1959), the fourth billion in 15 years (1974), and the fifth billion in only 13 years (1987). During the 20th century alone, the population in the world has grown from 1.65 billion to 6 billion. In 1970, there were roughly half as many people in the world as there are now. Because of declining growth rates, it will now take over 200 years to double again. So, There are definitely more people on earth now...huh? 
reply about 4 hours
JazzyRox
JazzyRox posted in Debating:
"Eri-Prime" wrote: It should be illiegal. we are reducing Earths popluationn ya know? WE NEED MORE HUMANS I don't think we need any more humans right now.. We already Have 7 billion... plus, Not all Humans are gay..(obviously! most humans are straight.) And i think that if you are gay it is a great opportunity to Adopt a child who needs a home. (I'm Mormon Btw, And Mormons get shamed for hating gays...Like seriously? No! Maybe someone should try being a mormon before assuming what we hate and don't hate) 
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