The history of evolution has seen many land animals move to the sea, but few have done it with such success and specialization as ichthyosaurs. These Mesozoic marine reptiles were the first group of tetrapods to truly dominate the marine realm, and they evolved some of the most extreme adaptations – and largest bodies – of any ocean-dwelling tetrapods. This episode, we discuss how they got started, what they did, where they went, and why they’re so incredibly famous. In the news: giant crocs, giant rhinos, young tyrannosaurs, and dwarf elephants. Time markers: Intro & Announcements: 00:00:00 News: 00:04:00 Main discussion, Part 1: 00:32:00 Main discussion, Part 2: 01:15:00 Patron question: 01:59:30 Check out our blog for bonus info and pictures: http://commondescentpodcast.wordpress.com/ Find merch at the Common Descent Store! http://zazzle.com/common_descent Follow and Support us on: Patreon: https://www.patreon.com/commondescentpodcast Twitter: https://twitter.com/CommonDescentPC Facebook: https://www.facebook.com/commondescentpodcast Instagram: @commondescentpodcast YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw PodBean: https://commondescentpodcast.podbean.com/ iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2 The Intro and Outro music is “On the Origin of Species” by Protodome. More music like this at http://ocremix.org. Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

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“What did the council decide on item 42?” — answered with the speaker and the moment.

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