Not Africa
A group of researchers from Canada and
USA have conducted a wide-ranging survey
of the geographical distribution of human
genomes and phonemes (speech sounds).
They found that as populations split up
and migrate away from one another, genetic diversity within
the groups decrease. However,
languages
show
the opposite
effect – they become more diverse. This
was surprising enough, but the real surprise
was that languages did not fit an ‘out of
Africa’ pattern.