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b'The history of animal life on Earth has been shaped by sex. The struggle to reproduce puts unique evolutionary pressures on species which affect their behavior and even their physical form. Sexual selection is immensely important but trying to sort out the side effects of sex in the fossil record is notoriously tricky.\\nIn the news: giant beavers, croc metabolism, schooling fish, and another new croc.\\nTime markers: Intro & Announcements: 00:00:00News: 00:06:30Main discussion, Part 1: 00:35:00Main discussion, Part 2: 01:10:30Patron question: 01:46:00\\nThe Common Descent Store is open! Get merch! http://zazzle.com/common_descent\\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/'