27 Years After These Conjoined Twins Were Born, They Have Shared Some Exciting News

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Image: Facebook/Abigail and Brittany Hensel

On top of the survival rate of conjoined twins being extremely low, their mere occurrence is also rare: some estimate that one in 189,000 births brings a set of conjoined twins. Of that small population, only 11 percent are dicephalic parapagus twins such as Brittany and Abby.

Image: Facebook/Abigail and Brittany Hensel

The inner workings of Brittany and Abby’s anatomy are also remarkable. Their upper body, for instance, contains double of each organ – two stomachs, two hearts, four lungs, etc. – but their lower half is shared, with a single reproductive system.

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Image: Facebook/Abigail and Brittany Hensel

In addition to that, Abby and Brittany each control one half of their body – that is, one arm and one leg each. Inevitably, then, the girls had to work together to master crawling, clapping and walking. In their later years, too, they learned how to swim, run, brush their hair and even drive side by side.

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