An epic, extraordinary account of scientific rivalry and obsession in the quest to survey all of life on Earth--a competition "with continued repercussions for Western views of race. This] vivid double biography is a passionate corrective" (The New York Times Book Review, Editors' Choice). " A] vibrant scientific saga . . . at once important, outrageous, enlightening, entertaining, enduring, and still evolving."--Dava Sobel,...