Phylogenetic tree of birds

2012-11-02

in Geek stuff, Science

This is pretty cool: ‘Tree of life’ constructed for all living bird species

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. August 19, 2018 at 3:09 pm

But that project has now reached a crisis point, David Quammen writes in his new book, “The Tangled Tree.” Genetics is revealing that the branches on Darwin’s tree of life are not so separate from each other as was once thought: Genes sometimes skip from species to unrelated species, effectively fusing different branches together. The big question now is whether Darwin’s tree represents a fundamentally flawed conception of evolutionary history or is merely in need of revision.

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