Shocking News About Your Mother.

"Human mitochondria is the vital little powerhouses of our cells... Over time, the mitochondrial pool for humans has shrunk so much that, almost unbelievably but rather wonderfully, we are all now descended from a single mitochondrial ancestor -- a woman who lived in Africa about 200,000 years ago. You might have heard her referred to as Mitochondrial Eve. She is, in a sense, mother of us all." The Body, by Bill Bryson