Season 1 Finale. What was the first living thing on Earth, when did it live, and what did it do? Today, we end Season 1 by meeting LUCA, the oldest ancestor for every living thing on Earth today. On the way, we'll tackle how complex life formed in a chaotic universe and why it hasn't formed again, take a trip down life's family tree, and meet a deadly modern microbe- one of the closest relatives of the oldest living thing.Thank you all for listening to Season 1, and stay tuned for Season 2!Extra Credit: Take a look at family photos, or check your canned foods for botulism.

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