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Episodes
Join David and Will as they explore the paleontologists’ perspective on various topics in life and earth history. Each episode features a main discussion on a topic requested by the listeners, presented as a lighthearted and educational conversation about fossils, evolution, deep time, and more. Before the main discussion, each episode also includes a news segment, covering recent research related to paleontology and evolution. Each episode ends with the answer to a question submitted by subscribers on Patreon. New episodes with new topics every fortnight!
Episodes

Saturday Feb 22, 2020
Episode 81 - Metamorphosis
Saturday Feb 22, 2020
Saturday Feb 22, 2020
Metamorphosis is the process that turns a caterpillar to a butterfly, a fry to a fish, and a tadpole to a frog. Animals have been metamorphosing for over 500 million years, from early crustaceans to the many fish, amphibians, and arthropods that do it today. Larvae, pupae, and adults are known in the fossil record, but the evolutionary history of this incredible life strategy is still mysterious.
In the news: a new tyrannosaur, early chameleons, giant turtles, and dinosaur temperatures.
Time markers:
Intro & Announcements: 00:00:00
News: 00:04:00
Main discussion, Part 1: 00:33:30
Main discussion, Part 2: 01:08:30
Patron question: 01:43:30
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
The Common Descent Store is open! Get merch! http://zazzle.com/common_descent
Follow and Support us on:
Patreon: https://www.patreon.com/commondescentpodcast
Twitter: https://twitter.com/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast
Instagram: @commondescentpodcast
PodBean: https://commondescentpodcast.podbean.com/
iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
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/

Saturday Feb 08, 2020
Episode 80 - Mary Anning
Saturday Feb 08, 2020
Saturday Feb 08, 2020
Happy Darwin Day!
This time around, we’re talking about Mary Anning! She was one of the earliest modern paleontologists, she helped lay the groundwork for our modern methods of uncovering and understanding fossils, and she was famously underappreciated in her time. We’re joined in our discussion by our friend Brittney Stoneburg from the Western Science Center!
Follow Brittney on Twitter and Instagram: @brittandbone
And follow our friends at the Western Science Center!
In the news: elephant evolution, pterosaur feeding, Jurassic “firewalkers”, and ancient fungi.
Time markers:
Intro & Announcements: 00:00:00
News: 00:05:00
Main discussion, Part 1: 00:40:30
Main discussion, Part 2: 01:13:30
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
The Common Descent Store is open! Get merch! http://zazzle.com/common_descent
Follow and Support us on:
Patreon: https://www.patreon.com/commondescentpodcast
Twitter: https://twitter.com/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast
Instagram: @commondescentpodcast
PodBean: https://commondescentpodcast.podbean.com/
iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
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/

Saturday Jan 25, 2020
Episode 79 - Pterosaurs
Saturday Jan 25, 2020
Saturday Jan 25, 2020
The first pterosaur to be scientifically identified was Pterodactylus, more than 200 years ago. Since then, scientists have grappled with understanding these bizarre and fantastic animals, aided by inspired science and incredible discoveries. In this episode, we’ll discuss what we know – and what we don’t know – about how these animals evolved, survived, and ruled the skies in the Age of Reptiles.
In the news: cassowary evolution, the oldest scorpions, sea floor taphonomy, and Neanderthal shells.
Time markers:
Intro & Announcements: 00:00:00
News: 00:08:30
Main discussion, Part 1: 00:38:30
Main discussion, Part 2: 01:22:00
Patron question: 02:10:00
We’ve donated our December 2019 Patreon earnings to WIRES to help with wildlife recovery in Australia. Learn more here: https://www.wires.org.au/
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
The Common Descent Store is open! Get merch! http://zazzle.com/common_descent
Follow and Support us on:
Patreon: https://www.patreon.com/commondescentpodcast
Twitter: https://twitter.com/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast/
PodBean: https://commondescentpodcast.podbean.com/
iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
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/

Sunday Jan 19, 2020
DragonCon 2019 Paleontology Hour Panel
Sunday Jan 19, 2020
Sunday Jan 19, 2020
At DragonCon 2019, Will and David were part of the Paleontology Hour Panel, where a room full of nerds asked all their paleo-related questions to a panel of experts - and we recorded it!
We were joined on the panel by:
Trevor Valle @tattoosandbones
Charon Henning @TheOddAngel
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
The Common Descent Store is open! Get merch! http://zazzle.com/common_descent
Follow and Support us on:
Patreon: https://www.patreon.com/commondescentpodcast
Twitter: https://twitter.com/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast/
PodBean: https://commondescentpodcast.podbean.com/
iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
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/

Saturday Jan 11, 2020
Episode 78 - Exaptation
Saturday Jan 11, 2020
Saturday Jan 11, 2020
Hand a kitchen appliance to a child and they’re likely to find a whole new way to use it. This happens in evolution, too – traits adapted for one purpose turn out to be beneficial for a whole other reason, and so the trajectory of natural selection changes. The term for this is exaptation, but it’s a complicated concept, and not everyone even likes using the word. Let’s discuss what this word means, why it exists, and what some people find wrong with it.
In the news: the oldest forest, an ancient parent, young T. rex, and fossil lungfish.
Time markers:
Intro & Announcements: 00:00:00
News: 00:04:30
Main discussion, Part 1: 00:35:30
Main discussion, Part 2: 01:00:00
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
The Common Descent Store is open! Get merch! http://zazzle.com/common_descent
Follow and Support us on:
Patreon: https://www.patreon.com/commondescentpodcast
Twitter: https://twitter.com/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast/
PodBean: https://commondescentpodcast.podbean.com/
iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
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/

Tuesday Dec 31, 2019
End of the Year Q&A 2019
Tuesday Dec 31, 2019
Tuesday Dec 31, 2019
Happy New Year!
We got a ton of questions this year, so enjoy the end of the decade with this extra-long edition of David and Will saying the things you want to hear!
See you in the ‘20s!
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
The Common Descent Store is open! Get merch! http://zazzle.com/common_descent
Follow and Support us on:
Patreon: https://www.patreon.com/commondescentpodcast
Twitter: https://twitter.com/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast/
PodBean: https://commondescentpodcast.podbean.com/
iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
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/

Saturday Dec 28, 2019
Episode 77 - Fins to Feet: The Fish-Tetrapod Transition
Saturday Dec 28, 2019
Saturday Dec 28, 2019
Happy New Year!
As we transition into a new decade, this episode is about one of the most important and incredible transitions in the evolutionary history of life. In the Late Devonian, one particular group of bony fish spent many millions of years experimenting with new forms of fins, skulls, and lifestyles, ultimately giving rise to the first land-dwelling vertebrates and setting the stage for 300 million years of continental dominance.
In the news: the earliest penguins, ancient whale swimming, dinosaur lice, and really old brains.
Time markers:
Intro & Announcements: 00:00:00
News: 00:04:00
Main discussion, Part 1: 00:30:30
Main discussion, Part 2: 00:59:00
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
The Common Descent Store is open! Get merch! http://zazzle.com/common_descent
Follow and Support us on:
Patreon: https://www.patreon.com/commondescentpodcast
Twitter: https://twitter.com/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast/
PodBean: https://commondescentpodcast.podbean.com/
iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
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/

Saturday Dec 14, 2019
Episode 76 - Horse Evolution
Saturday Dec 14, 2019
Saturday Dec 14, 2019
The evolution of horses is a classic story, first because it is a beautiful example of evolution in the fossil record, and second because of how our scientific perspective of this story has shifted over the years. From the tiny forest-dwellers of the Eocene, barely recognizable as horse-relatives, to the mighty domesticated animals we know today, we’ll unpack what we know – and what we thought we knew – about horse evolution.
In the news: dinosaur teeth, alligator tools, ancient embryos, and dinosaur heads.
Time markers:
Intro & Announcements: 00:00:00
News: 00:05:00
Main discussion, Part 1: 00:37:00
Main discussion, Part 2: 01:15:00
Patron question: 01:47:30
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
We made an appearance on The Science of Pokémon to talk about - what else? - fossil Pokémon! https://podcasts.apple.com/us/podcast/history-of-galar/id1287752766?i=1000459595554
The Common Descent Store is open! Get merch! http://zazzle.com/common_descent
Follow and Support us on:
Patreon: https://www.patreon.com/commondescentpodcast
Twitter: https://twitter.com/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast/
PodBean: https://commondescentpodcast.podbean.com/
iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
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/

Sunday Dec 08, 2019
...But We Digress - Pokemon Paleontology
Sunday Dec 08, 2019
Sunday Dec 08, 2019
Welcome to the world of Pokémon Paleontology! In this digression – by popular demand – we explore how the fictional world of Pokémon draws inspiration from real world science, particularly in regard to fossils and evolution. We’ll name our favorite fossil Pokémon, discuss Pokémon evolution, and point out where the Poké-science gets wonky.
What’s your favorite bit of Pokémon science?
We're doing another End of the Year Q&A! Submit your question here:
https://forms.gle/E398RmMhGvaYHpz6A
The Common Descent Store is open! Get merch! http://zazzle.com/common_descent
Follow and Support us on:
Patreon: https://www.patreon.com/commondescentpodcast
Twitter: https://twitter.com/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast/
PodBean: https://commondescentpodcast.podbean.com/
iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
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/

Saturday Nov 30, 2019
Episode 75 - The Great Oxidation Event
Saturday Nov 30, 2019
Saturday Nov 30, 2019
Time for another extinction! This time, we’re discussing what might be the most ancient, most mysterious, and most catastrophic mass extinction event of all time. The Great Oxidation Event marks the turning point that set our atmosphere on course to its current oxygen-rich state and made the Earth hospitable for life as we know it … at the expense of all the life that came before.
In the news: the largest ape, early pollinators, early birds, and early snakes.
Time markers:
Intro & Announcements: 00:00:00
News: 00:04:30
Main discussion, Part 1: 00:36:00
Main discussion, Part 2: 01:09:30
Patron Question: 01:33:00
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
We're doing another End of the Year Q&A! Submit your question here:
https://forms.gle/E398RmMhGvaYHpz6A
The Common Descent Store is open! Get merch! http://zazzle.com/common_descent
Follow and Support us on:
Patreon: https://www.patreon.com/commondescentpodcast
Twitter: https://twitter.com/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast/
PodBean: https://commondescentpodcast.podbean.com/
iTunes: https://itunes.apple.com/us/podcast/the-common-descent-podcast/id1207586509?mt=2
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
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/
