All Episodes

June 4, 2025 84 mins
“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. --------------------------------- Learn more about your ad choices. Visit megaphone.fm/adchoices
Mark as Played

Advertise With Us

Popular Podcasts

Bookmarked by Reese's Book Club

Bookmarked by Reese's Book Club

Welcome to Bookmarked by Reese’s Book Club — the podcast where great stories, bold women, and irresistible conversations collide! Hosted by award-winning journalist Danielle Robay, each week new episodes balance thoughtful literary insight with the fervor of buzzy book trends, pop culture and more. Bookmarked brings together celebrities, tastemakers, influencers and authors from Reese's Book Club and beyond to share stories that transcend the page. Pull up a chair. You’re not just listening — you’re part of the conversation.

Dateline NBC

Dateline NBC

Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations. Follow now to get the latest episodes of Dateline NBC completely free, or subscribe to Dateline Premium for ad-free listening and exclusive bonus content: DatelinePremium.com

On Purpose with Jay Shetty

On Purpose with Jay Shetty

I’m Jay Shetty host of On Purpose the worlds #1 Mental Health podcast and I’m so grateful you found us. I started this podcast 5 years ago to invite you into conversations and workshops that are designed to help make you happier, healthier and more healed. I believe that when you (yes you) feel seen, heard and understood you’re able to deal with relationship struggles, work challenges and life’s ups and downs with more ease and grace. I interview experts, celebrities, thought leaders and athletes so that we can grow our mindset, build better habits and uncover a side of them we’ve never seen before. New episodes every Monday and Friday. Your support means the world to me and I don’t take it for granted — click the follow button and leave a review to help us spread the love with On Purpose. I can’t wait for you to listen to your first or 500th episode!

Music, radio and podcasts, all free. Listen online or download the iHeart App.

Connect

© 2025 iHeartMedia, Inc.