Archiver > GENEALOGY-DNA > 2010-02 > 1265941523

From: Bonnie Schrack <>
Subject: [DNA] Early Human population size
Date: Thu, 11 Feb 2010 21:25:23 -0500

Did anyone already post this?

Genome Study Provides a Census of Early Humans

By Nicholas Wade
January 18, 2010

From the composition of just two human genomes, geneticists have
computed the size of the human population 1.2 million years ago from
which everyone in the world is descended.

They put the number at 18,500 people, but this refers only to breeding
individuals, the “effective” population. The actual population would
have been about three times as large, or 55,500.

. . .

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