This was on Discovery Health and was speaking of a very rare phenomenon where a woman was a Chimera.
When she was conceived, the two zygotes that would have otherwise formed fraternal twins, actually completely fused together. When she was born, she was born fully female (as both "twins" were female, luckily). This women went on to give birth to two children, and when a paternity test was done, it was discovered that the father of her children, was indeed, the father, but that she was NOT the biological mother.
She was risking losing her children, because the courts did not see how this was possible, nor the DNA lab doing the tests.
It turns out that when they took DNA samples from different parts of her body, they had a different "footprints", and with added research, it was discovered she was a Chimera.
This is an amazing story, anyone that gets the opportunity to watch it, as it repeats alot, please do. This falls under the catagory, "Just when you think you've heard it all...."
