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don’t
really
know
why.”
at
the
time
of
our
meeting,
in
early
2002,
another
oxford
scientist
named
bryan
sykes
hadjust
produced
a
popular
book
called
the
seven
daughters
of
eve
in
which,
using
studies
ofmitochondrial
dna,
he
had
claimed
to
be
able
to
trace
nearly
all
living
europeans
back
to