Welcome to a new season of Tides of History! Over the next year, we'll be traveling from the very origins of our species through the peopling of the planet, the Ice Age, and then to the beginnings of agriculture, cities, metalworking, and states. Today, we cover our deepest past, from the divergence from our closest ape relatives to the first appearance of anatomically modern humans.

To see visuals of our earliest ancestors, and how-to videos for making ancient stone tools, check out Patrick's website.

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