A NEW VIEW OF EVOLUTION THAT CAN’T BE REPRESENTED BY A TREE

“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 … Continue reading A NEW VIEW OF EVOLUTION THAT CAN’T BE REPRESENTED BY A TREE