Last Ape Standing: The Seven Million Year Story of How and Why We Survived

Over the past 150 years scientists have discovered evidence that at least twenty-seven species of humans evolved on planet Earth. These weren't simply variations on apes, but upright-walking humans who lived side by side, competing, cooperating, sometimes even mating with our direct ancestors. Why did the line of ancient humans who eventually evolved into us survive when the others were shown the evolutionary door?

Chip Walter draws on new scientific discoveries to tell the fascinating tale ...