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South America today is home to some of the most incredible ecosystems on the planet, and its fossil record is even more varied and fantastic. In this episode, we explore the history of the continent from its early formation to its long Cenozoic isolation, and we\u2019ll highlight some of the strangest ancient creatures \u2013 especially its bizarre mammals \u2013 that have called South America home.\nIn the news: ancient ape locomotion, a Polish pliosaur, post-extinction Colorado, and one really old dinosaur.\nTime markers: Intro & Announcements: 00:00:00News: 00:04:00Main discussion, Part 1: 00:28:30Main discussion, Part 2: 00:59:30Patron question: 01:35:00\nCheck out our blog for bonus info and pictures:http://commondescentpodcast.wordpress.com/\nWe're doing another End of the Year Q&A! Submit your question here: https://forms.gle/E398RmMhGvaYHpz6A\nThe Common Descent Store is open! Get merch! 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/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/