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Globe-Trotting Black Rat Genes Reveal Spread Of Humans And Diseases  
2/1/2008 7:48:32 AM

Studying the mitochondrial DNA of 165 Black Rat specimens from 32 countries around the world, an international team of scientists has identified six distinct lineages in the Black Rat’s family tree, each originating from a different part of Asia. Read full article below.
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