Episode 179 - Thermoregulation

The Common Descent Podcast

Common Descent

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

4.8 • 764 Ratings

🗓️ 26 November 2023

⏱️ 129 minutes

🔗️ Recording | iTunes | RSS

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Summary

If things get too hot or too cold, the crucial processes inside the cells and tissues of living organisms stop working properly, and that’s bad. So, organisms expend a lot of time and energy managing their body temperatures. This episode, we break down the familiar concepts of “warm-blooded” and “cold-blooded,” we discuss the many adaptations that animals use to manage the heat, we explore what evidence allows us to interpret thermoregulatory strategies in the fossil record, and we investigate what is known about how these strategies have evolved over time. In the news: soft robot echinoderms, bird tracks, taste evolution, and dinosaur eggs. Time markers:Intro & Announcements: 00:00:00News: 00:04:45Main discussion, Part 1: 00:36:00Main discussion, Part 2: 01:20:30Patron question: 1:59:00 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, Will. Hello, David. Hello, listeners, and welcome to episode 179 of the Common Descent
0:26.4	Podcast. This is a podcast where we talk about paleontology, evolution, life history,
0:30.9	the kind of stuff like that. This episode's topic is thermoregulation.
0:36.4	Thermo-regulation. Thermo-regulation.
0:38.1	Which means that we're talking about the ways that animals maintain and manage their
0:43.1	body temperatures.
0:44.9	This really means we're going to be talking a lot about the terms warm-blooded and
0:48.8	cold-blooded.
0:49.6	Yes.
0:50.0	What they actually mean, where the nuance is, what are the various strategies that different
0:56.4	species have for their own thermoregulatory strategies, and then we'll hop into the fossil
1:05.1	record and look at how do we determine what ancient species were doing? What? And what do we know about the evolution of
1:13.8	certain thermoregulatory strategies? Mostly, that means we're going to be talking about endothermy.
1:18.1	Yes. One of the hallmarks of, quote, warm bloodedness. It's going to be a lot of breaking down
1:24.1	terms and going across the animal kingdom and looking at different ways that
1:29.8	groups do stuff. And as we'd love to do here on the podcast, it's going to be a lot of us
1:35.2	bringing up a term and then pointing out all the fun exceptions to it. Yep. We love to take out
1:39.8	all the boxes that something has been put into and then slowly unfold the box.
1:45.1	Yeah.
1:45.6	Shuffle the pieces around a bit more.
1:47.2	So this will be a lot of fun.
	...

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