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GeneticsTop genomes of 2013
Scientists continue to decode the genetic blueprints of the planet’s myriad flora and fauna.
By Beth Mole -
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MicrobesMicroscopic menagerie
The microbes dwelling in and on multicellular organisms should be viewed as evolutionarily inseparable from their hosts, some biologists argue.
By Susan Milius -
HumansMother lode
Certain sugar molecules in human breast milk do more to foster beneficial microbes, and banish harmful ones, than they do to nourish newborns.