![]() ![]() In The Tangled Tree, “the grandest tale in biology….David Quammen presents the science-and the scientists involved-with patience, candor, and flair” ( Nature). It turns out that HGT has been widespread and important we now know that roughly eight percent of the human genome arrived sideways by viral infection-a type of HGT. Perhaps the most startling discovery to come out of this new field-the study of life’s diversity and relatedness at the molecular level-is horizontal gene transfer (HGT), or the movement of genes across species lines. In the mid-1970s, scientists began using DNA sequences to reexamine the history of all life. ![]() ![]() ![]() In this New York Times bestseller and longlist nominee for the National Book Award, “our greatest living chronicler of the natural world” ( The New York Times), David Quammen explains how recent discoveries in molecular biology affect our understanding of evolution and life’s history. ![]()
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