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b'Filter feeding is among the most widespread dietary strategies in the world. From tiny bivalves to massive basking sharks, animals have developed a vast array of convergent strategies for filtering tiny food particles out of the water. This episode, we discuss what it takes to be a filter feeder, why it\\u2019s so common, the various methods animals employ to make it happen, and how we try (sometimes successfully) to identify filter feeding in the fossil record.\\nIn the news: Thailand trilobites, mammal aging, bird-like footprints, and whale echolocation.\\nTime markers:Intro & Announcements: 00:00:00News: 00:04:55Main discussion, Part 1: 00:38:30Main discussion, Part 2: 01:22:00Patron question: 02:04:30\\nCheck out our website for this episode\\u2019s blog post and more:http://commondescentpodcast.com/\\nThe End of the Year Q&A submission form is open! Submit your question here:https://forms.gle/EeAMhEfnatVWqmnS9\\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 3.0http://creativecommons.org/licenses/by/3.0/'