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Imagining a world without species


September 20, 2017

Categorizing species can get hazy at small, microbial scales. After all, the classical definition of species as interbreeding individuals with sexually viable offspring doesn't apply to asexual organisms. Examining shared DNA doesn't help either: collectively, E. coli bacteria have only 20 percent of genes in common. In new research, a Harvard University researcher asks: Could organism interactions be described without mentioning species at all? Full Story

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Harvard John A. Paulson School of Engineering and Applied Sciences

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