Episode 180 - Filter Feeding

The Common Descent Podcast

Common Descent

Science, Education, Earth Sciences, Natural Sciences, Science:natural Sciences

4.8 • 764 Ratings

🗓️ 10 December 2023

⏱️ 132 minutes

🔗️ Recording | iTunes | RSS

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Summary

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’s 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. In the news: Thailand trilobites, mammal aging, bird-like footprints, and whale echolocation. Time 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 Check out our website for this episode’s blog post and more:http://commondescentpodcast.com/ The End of the Year Q&A submission form is open! Submit your question here:https://forms.gle/EeAMhEfnatVWqmnS9 Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast Got a topic you want to hear about? Submit your episode request here:https://commondescentpodcast.com/request-a-topic/ We’re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent Lots more ways to connect with us: https://linktr.ee/common_descent 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 3.0http://creativecommons.org/licenses/by/3.0/

Transcript

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0:00.0	You're listening to the Common Descent Podcast.
0:19.0	Hello, David. Hello, Will.
0:21.2	And hello, listeners.
0:22.5	Welcome to episode 180 of the Common Descent podcast.
0:27.3	La Hymaham.
0:27.9	The podcast where we discuss science, paleontology, earth history, and evolutionary biology.
0:35.3	And this episode, we will be discussing filter feeding. Another diets episode.
0:39.8	Yeah. This is a fun topic because it is far more common than a lot of people might realize
0:47.4	than even we really realized going in. This is a way of feeding that a lot of life on earth does, but does it in many, many different ways.
0:57.5	So we will go through what does it mean to filter feed?
1:00.3	What are some of the different mechanisms of filtration and styles of filtration, as well as what is the evidence of it in the fossil record?
1:09.5	What filter feeders have we been able to find or how do we recognize them? And then what's some of the evidence of it in the fossil record? What filter feeders have we been able to find or
1:11.2	how do we recognize them? And then what's some of the trends of how something becomes a filter
1:16.6	feeder? Yeah, this will be, I always like the diet episodes. We did herbivores back in episode 173. We did
1:22.9	sanguivores back in episode 134. Always very cool to talk about. Yeah.
1:29.1	So this is a lot of fun.
1:32.3	Had a ton of fun looking this up and learning about it.
1:37.2	So therefore we would like to thank our requesters who asked for this topic, which is Helpless Droid, Taterboy, and Jordy.
1:40.1	Thank you very much for leading us down this awesome discussion.
1:43.4	All of our episode topics are requested. So if you have topics you'd like to think of,
1:47.8	check out the description for a link for our submission form to ask for topics.
1:53.3	Before we get into the main episode, some brief announcements, as always, our first announcement is that we have a Patreon.
	...

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