From the UK comes news that family trees of the future might need an extra branch.
Scientists believe they have made a potential breakthrough in the treatment of serious disease by creating a human embryo with three separate parents.
The embryos have been created using DNA from a man and two women in lab tests. [Link]

Oh, man . . . think how complicated our pedigrees are going to get now. Instead of 2, 4 , 8, it'll be 3, 6, 12 . . .