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The PETM has been called the largest natural climate change event of the Cenozoic Era. It marks the transition from the ecosystems of the Paleocene to the more familiar world of the Eocene and is thus an important step in making the world the way we know it today. But maybe most importantly, it is a dramatic case study in what happens when a huge amount of Carbon injected into the atmosphere triggers rapid warming of global climate \u2026 you know, in case anyone needs to know about that.\nIn the news: pterosaur cousins, oldest pythons, burrowed dinosaurs, and hibernating hominins.\nTime markers: Intro & Announcements: 00:00:00News: 00:04:30Main discussion, Part 1: 00:32:30Main discussion, Part 2: 01:03:00 Patron question: 01:36:30\nCheck out our blog for bonus info and pictures:http://commondescentpodcast.wordpress.com/\nFind merch at the Common Descent Store! http://zazzle.com/common_descent\nFollow and Support us on: Patreon: https://www.patreon.com/commondescentpodcast Twitter: https://twitter.com/CommonDescentPCFacebook: https://www.facebook.com/commondescentpodcastInstagram: @commondescentpodcast PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw\nThe Intro and Outro music is \u201cOn the Origin of Species\u201d by Protodome. More music like this at http://ocremix.org.\nMusical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0http://creativecommons.org/licenses/by/3.0/