“It's a remarkable series of events that were required for us to be here, and that so many things could have happened in a different way that we wouldn't be here at all, both individually, and as a species.” What if your existence hinged on a single cosmic accident that took place millions of years ago? Biologist Sean B. Carroll examines the chain of events that made humanity’s domination as a species possible. From the specific chemistry of an asteroid to Earth’s shifting atmosphere, Carroll unpacks how a series of fortunate events made our planet the perfect cradle for mammals.

Chapters: 00:00:00 Part 1: The role of chance in the creation of life 00:00:16 What are the odds that life exists on any given planet? 00:00:48 What developments led to life on Earth? 00:01:58 Where do you begin our origin story? 00:04:51 What is unique about the last 3 million years on Earth? 00:06:04 What mass extinctions has Earth faced? 00:07:33 What events allowed humans to flourish? 00:15:37 Why was the K-Pg asteroid so devastating? 00:18:25 How did life on Earth rebound from the K-Pg asteroid? 00:19:57 How much have we evolved since the age of hunter-gatherers? 00:24:16 Are we lucky to be here? 00:27:20 Part 2: The resilience of nature. 00:27:30 Would nature heal itself if humans ceased to exist? 00:29:36 How much of an impact have humans had on Earth? 00:33:16 Can we think of Earth as an organism? 00:37:16 What are the “Serengeti rules?” 00:39:48 What is the leading cause of biodiversity loss? 00:46:56 How resilient is nature? 00:51:12 What did COVID teach us about nature’s ability to rebound? 00:53:09 Why is biodiversity critical to human flourishing? 00:54:04 What can we do to protect both us and the planet? 01:00:39 Is there time for the planet to rebound? 01:04:42 PART 3: The evolution of human experience. 01:04:52 Has the quality of human life improved over time? 01:06:27 What impact has medical science had on humanity? 01:08:23 How have agricultural advances changed lives? 01:10:12 Why is it important to understand the rules of life? 01:09:14 How are our bodies regulated? --------------------------------- About Sean B. Carroll: Sean B. Carroll is an award-winning scientist, author, educator, and film producer. He is Distinguished University Professor and the Andrew and Mary Balo and NIcholas and Susan Simon Chair of Biology at the University of Maryland, and an Investigator of the Howard Hughes Medical Institute. He was formerly Head of HHMI Tangled Bank Studios, and led the Department of Science Education from 2010-2023. He is also Professor Emeritus of Genetics and Molecular Biology at the University of Wisconsin. An internationally-recognized evolutionary biologist, Carroll's laboratory research has centered on the genes that control animal body patterns and play major roles in the evolution of animal diversity. In recognition of his scientific contributions, Carroll has received the Benjamin Franklin Medal in Life Sciences, been elected to the National Academy of Sciences and the American Philosophical Society, named a Fellow of the American Academy of Arts and Sciences and the American Association for the Advancement of Science, and elected an Associate Member of the European Molecular Biology Organization. His latest book is A Series of Fortunate Events.

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