Sewage water bacteria helps fill 'missing link' in early evolution
Tuesday, December 7, 2010 - 07:00
in Biology & Nature
(PhysOrg.com) -- A common group of bacteria found in acid bogs and sewage treatment plants has provided scientists with evidence of a missing link in one of the most important steps in the evolution of life on earth - the emergence of cells with a nucleus containing DNA (eukaryotic cells).