Episode 203 - Rodents

The Common Descent Podcast

Common Descent

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

4.8 • 764 Ratings

🗓️ 27 October 2024

⏱️ 148 minutes

🔗️ Recording | iTunes | RSS

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Summary

Mice, rats, beavers, and more! Rodents are some of the most diverse and successful mammals on the planet. This episode, we discuss what traits make rodents special, and we explore their incredible living diversity. Then we’ll take a trip to the past to investigate early rodent evolution, some highlights of their fossil record, and some of their ancient competitors. In the news: Arthropleura’s head, raptorial birds, dinosaur eggs, and evolution education. Time markers:Intro & Announcements: 00:00:00News: 00:05:50Main discussion, Part 1: 00:38:25Main discussion, Part 2: 01:28:15Patron question: 02:14:25 Check out our website for this episode’s blog post and more: http://commondescentpodcast.com/ 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/ 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 3.0 http://creativecommons.org/licenses/by/3.0

Transcript

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0:00.0	You're listening to the Common Descent Podcast.
0:19.2	Hello, David. Hello, Will.
0:21.3	And hello listeners.
0:23.1	Welcome to episode 203 of the Common Descent Podcast.
0:27.6	This episode, we are discussing rodents.
0:31.1	Well, because we're really excited about tiny things this month.
0:33.5	Yes, evidently.
0:34.3	We are on a theme.
0:41.1	Rodents, a topic long overdue, as many people have pointed out.
0:49.4	They're pretty common. When I've told the couple of friends that I told what episodes X, a few of them responded, you haven't done rodents?
1:00.2	Almost eight years. This is it. We've been waiting. Rodents, very cool group of mammals, very, very, very diverse group of mammals.
1:07.2	This will be the barest overview of this group to get an idea of what it means to be a rodent,
1:12.6	what some of the range of their diversity is, and the features we see in this group.
1:15.4	We will not be diving into individual groups.
1:19.3	In fact, the request list that we're about to read is only for rodent.
1:23.1	If you wanted a specific one, we're saving those for later. This will be another.
1:23.9	This is like what we did with dinosaurs.
1:25.4	Yes.
1:26.0	We'll go through the modern diversity and what defines means, what defines a rodent, we'll also go
1:31.2	through the fossil history and some of the diversity and features we see in the fossil record
1:36.7	that we don't see today.
1:38.3	And as already mentioned, we're talking about this because it's about time, but mostly because
	...

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