https://ift.tt/2wwdHAe A New View of Evolution That Can’t Be Represented by a Tree Books and Literature, Genetics and Heredity, Evolution (Biology) David Quammen has written a sprawling history of evolutionary genetics, “The Tangled Tree,” that complicates familiar notions of how species evolved. ERIKA CHECK HAYDEN https://ift.tt/2B7JRVc August 13, 2018 at 05:30AM