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You are browsing the archive for 2018 September 19.

19 September 2018

The Tangled Tree, by David Quammen

The talented science writer David Quammen has a new book out, and it’s excellent. The Tangled Tree explores endosymbiosis and horizontal gene transfer, two aspects of evolution that undercut the traditional ever-more-branching “tree of life” vision for the relatedness of living things. The lineage of organisms is not only divergent, but convergent too: populations diverge and sometimes merge, in whole or in part, complicating the traditional “ramose” structure of phylogenetic …

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