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In this episode, we\u2019re examining the incredible formation of reefs! Not just coral \u2013 reef systems have been built by many different organisms over Earth history, and we\u2019ll be touching on the details of these essential harbors of biodiversity: past, present, and prospects for the future.\nIn the news: bone-crushing dogs, ancient global warming, a tick in a web, and how birds bounced back.\nTime markers: Intro & Announcements: 00:00:00News: 00:05:30Main discussion, Part 1: 00:35:00Main discussion, Part 2: 01:11:30Patron question: 01:46:30\nCheck out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/\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.\nMuscial Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0http://creativecommons.org/licenses/by/3.0/