b'For much of their evolutionary history, whales have been divided into two main lineages: baleen whales and toothed whales. The toothed variety are especially diverse today, including sperm whales, belugas, porpoises, and so, so many dolphins (among others). This episode, we explore what makes toothed whales distinct \\u2013 besides the obvious \\u2013 and what the whale fossil record tells us about how they came to be among the most successful marine animals in Earth history.\\nIn the news: leaf-eating birds, tiny whales, whale-like reptiles, and giant whales.\\nTime markers:Intro & Announcements: 00:00:00News: 00:07:25Main discussion, Part 1: 00:42:45Main discussion, Part 2: 01:24:15Patron question: 02:23:45\\nCheck out our blog for bonus info and pictures: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\\nOr make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp\\nFind merch at the Common Descent Store! http://zazzle.com/common_descent\\nJoin the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev\\nFollow and Support us on:Twitter: https://twitter.com/CommonDescentPCFacebook: https://www.facebook.com/commondescentpodcastInstagram: https://www.instagram.com/commondescentpodcast/YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduwPodBean: https://commondescentpodcast.podbean.com/\\nYou can email us at commondescentpodcast(at)gmail.comOr send us physical mail at:The Common Descent Podcast1735 W State of Franklin Rd. Ste 5 #165Johnson City, TN 37604\\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/'