Episode 170 - Milk

The Common Descent Podcast

Common Descent

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

4.8 • 764 Ratings

🗓️ 23 July 2023

⏱️ 132 minutes

🔗️ Recording | iTunes | RSS

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Summary

Mammals are famous for their ability to produce milk, a special substance that is essential for providing newborns with the ingredients they need for healthy development. As it turns out, mammals aren’t the only ones. Milk-like substances have evolved in many groups of animals which nourish their developing young. In this episode, we discuss what milk is, what it does, how it seems to have evolved, and the surprisingly long list of times animals have evolved the habit of providing nutritious fluids to feed their offspring. In the news: Anomalocaris diets, Asian alligators, ancient puberty, and the Cambrian Explosion. Time markers:Intro & Announcements: 00:00:00News: 00:05:55Main discussion, Part 1: 00:41:30Main discussion, Part 2: 01:29:35Patron question: 02:04:10 Check out our blog for bonus info and pictures:http://commondescentpodcast.com/ Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast Listen to David talk about snake paleontology on Snake Talk!https://www.oriannesociety.org/snake-talk/ Listen to Will and David discuss the evolution of flight on Little Curiosities!https://listen.qcodemedia.com/littlecuriosities We’re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent Or make a one-time donation via PayPal: https://tinyurl.com/4c68u4hp Find merch at the Common Descent Store! http://zazzle.com/common_descent Join the Common Descent Discord server! https://discord.gg/CwPBxdh9Ev Follow 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/ You 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 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.
0:19.2	Hello, David. Hello, Will. And hello, David.
0:21.8	Hello, Will.
0:24.0	And hello, listeners.
0:29.1	Welcome to episode 170 of the Common Descent Podcast.
0:32.7	This episode, we are discussing milk.
0:35.1	Milk, a very familiar topic.
0:36.3	I'm a big fan of milk. I go through a gallon fairly regularly.
0:39.9	I am not a big fan of milk, but I used to be a long, long time ago.
0:45.9	So milk, we will be discussing the concept of mammary glands, milk, how it evolved, who produces it, and what is its role in the animals that produce and drink this very specific nutritional substance?
1:06.1	And we will be discussing this topic because it was requested quite a bit, either for milk, lactation, memory
1:13.3	glands, or nipples. And our requests come from Diana, Jackie, the Lod, Celeste, Firefly, Super,
1:23.5	Milo, the Biohazard, and Manwalker. Thank you, everybody, for requesting this is a popular topic.
1:30.5	Yeah, it was a lot of fun to research because this is a very unusual and oftentimes
1:38.7	specific concept in nature and among animals.
1:42.7	So there's actually quite a bit of details to go over.
1:46.1	So I had lots of fun going through all those. And if I'm not mistaken, we will not be just
1:51.3	discussing mammals. No, there are other things that produce milk-esque things.
1:58.2	Oh, who-hoo-hoo. Now, before we get into that main topic, some brief announcements before we then get into our
2:05.0	first section, which is the news, as always, our first announcement is that we have a
2:10.0	Patreon.
2:10.7	We sure do.
	...

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