I found this email I had sent back in 2002…more fun stories of the parasitic nature of developing humans!

“My friend Gloria just told me a good story about knee surgery. Her friend had to have knee surgery when she was seven, because apparently, she had a twin sister in the womb that didn’t survive, and the twin’s tissue attached to the girl’s knee, and stayed there until she was seven when her mom noticed her limping around the house. The doctors initially thought is was some sort of calcium deposit, but it turned out it was a growth from her twin that needed to be removed!”