Episode 225 - Forests

The Common Descent Podcast

Common Descent

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

4.8 • 764 Ratings

🗓️ 31 August 2025

⏱️ 176 minutes

🔗️ Recording | iTunes | RSS

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Summary

Forests are among the most widespread and diverse biomes on our planet. This episode, we’re joined by our favorite paleobotanist, Dr. Aly Baumgartner, to explore what defines a forest, how these habitats function, and how they differ around the globe. Then, we’ll take a trip into the past to discuss how paleontologists study ancient forests and how these biomes have changed over hundreds of millions of years. In the news: ocean sediments, early penguins, island foxes, Canadian dragonflies, and ancient deer. Time markers:Intro & Announcements: 00:00:00 News: 00:06:00Main discussion, Part 1: 00:37:30Main discussion, Part 2: 01:47:10Patron question: 02:48:35 Check out our website for this episode’s blog post and more: http://commondescentpodcast.com/ Listen to more Plants with Aly on Leaf it to Us!https://commondescentpodcast.com/leaf-it-to-us/ Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast Subscribe to Curiosity Box using our Affiliate Link: https://www.curiositybox.com/CommonDescent And get 25% off the first box with code descent25 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.
0:19.0	Hello, Will. Hello, David.
0:21.4	Hello, everybody, and welcome to Common Descent, a podcast where we talk about paleontology, evolution, the history of life on Earth.
0:27.8	This is episode 225.
0:30.8	This episode number ends in a five, which means we're talking about plants, which means that after the news, we will be joined by our favorite paleobotanist,
0:37.7	Dr. Ali Baumgartner, to talk with us about this episode's topic, forests.
0:43.9	Yeah.
0:45.2	I love talking about a biome.
0:47.1	We will talk about what forests are, how they function as a biome, as a home to ecosystems,
0:53.1	how we study them in the fossil record, and how
0:55.5	what forests are have changed throughout the history of plants on Earth.
1:02.0	Yeah, this is a fun one because I know what a forest is, but I know I don't know what a forest is.
1:08.7	Yes, exactly. We're excited, Allie's excited, and you know what a forest is. Yes. Exactly.
1:11.5	We're excited.
1:12.6	Allie's excited.
1:13.5	And you know who else is excited?
1:14.9	Probably all these people who requested this topic.
1:18.0	Every episode of the podcast is a topic requested by our listeners.
1:21.9	This episode topic was requested by Sam, Serpentine, Jackie, Apricity, Skull, Artist on a Mountain, Big Bossman, Peter,
1:32.2	Ryan, and Joe. Good suggestion, everyone. Thank you all. Stay tuned for that Forest's deep dive
1:39.5	after the news, which is after these announcements. First and foremost, we have a Patreon.
1:44.9	The support that we receive on Patreon allows us to do all the cool, fun stuff that we do
	...

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