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Famed geologist Walter Alvarez expands our view of human history by revealing the cosmic, geologic, and evolutionary forces that have shaped us. Big History, the field that studies the entire known past of our universe to give context to human existence, has so far been the domain of historians. In The Little Book of Big History, geologist Walter Alvarez -- best known for his "Impact Theory" explaining dinosaur extinction -- makes a compelling case for a new, science-first approach to Big History. He brings a scientist's view to the human story, from the creation of our universe and our planet, the rise of life, the movement of our continents and its effect on human migration, to humanity's ascendance due to our mastery of Earth's natural resources.