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Among the most spectacular of animal behaviors is migration, the habit of many species to undertake massive journeys, sometimes traveling thousands of kilometers to access food or breeding grounds. This episode, we explore the incredible diversity of migratory behaviors, we examine the functions and adaptations that make migration happen, we discuss how migration is defined, and we investigate some of the tools we can use to identify migration in the distant past.\nIn the news: giant crabs, fossil forests, early cephalopods, and mating termites.\nTime markers:Intro & Announcements: 00:00:00News: 00:04:40Main discussion, Part 1: 00:30:15Main discussion, Part 2: 01:26:00Patron question: 01:49:35\nCheck out our website for this episode\u2019s blog post and more: http://commondescentpodcast.com/\nJoin us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast\nGot a topic you want to hear about? Submit your episode request here: https://commondescentpodcast.com/request-a-topic/\nWe\u2019re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent\nLots more ways to connect with us: https://linktr.ee/common_descent\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 3.0 http://creativecommons.org/licenses/by/3.0/