

The Common Descent Podcast
Common Descent
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!
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
Mentioned books

Oct 21, 2023 • 58min
Spook-E - Wyverns
Welcome ... to Spookulative Evolution.
It’s October, and that means it’s Spook-E Season once again! Each episode in the series, we pick a type of monster and explore how it – or something like it – might evolve under the rules of evolution and natural selection, pulling inspiration from life in the real world. This year’s theme: Dragons.
This episode, we investigate a modern favorite. How could natural selection give us a (perhaps) more reasonably shaped dragon? Our creatures to create this time: Wyverns.
Join the Common Descent Discord server for more Spook-E discussion! https://discord.gg/CwPBxdh9Ev
Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast
We’re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent
More ways to connect with us: https://linktr.ee/common_descent
You can email us at commondescentpodcast@gmail.com
Or send us physical mail at:
The Common Descent Podcast
1735 W State of Franklin Rd. Ste 5 #165
Johnson City, TN 37604
The Intro and Outro music is “On the Origin of Species” by Protodome.
More music like this at http://ocremix.org.

Oct 15, 2023 • 2h 34min
Episode 176 - Hadrosaurs
Hadrosaurs (the so-called “duckbill” dinosaurs) and their fellow ornithopods were among the most abundant and successful dinosaur groups of all time. This episode, we discuss their evolution and diversity, and we explore some of the most outstanding and unique features of the group, including their incredible fossil record, complex social behaviors, wacky head ornaments, and their truly incredible mouths.
In the news: fluorescent mammals, snake tracks, leaf mining, and terror bird footprints.
Time markers:
Intro & Announcements: 00:00:00
News: 00:06:40
Main discussion, Part 1: 00:41:30
Main discussion, Part 2: 01:14:25
Patron question: 02:18:15
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/
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 3.0
http://creativecommons.org/licenses/by/3.0/

Oct 14, 2023 • 58min
Spook-E - East Asian Dragons
Welcome ... to Spookulative Evolution.
It’s October, and that means it’s Spook-E Season once again! Each episode in the series, we pick a type of monster and explore how it – or something like it – might evolve under the rules of evolution and natural selection, pulling inspiration from life in the real world. This year’s theme: Dragons.
This episode, we travel to another part of the world. How could we end up with an elemental being that combines the features of many animals? Our creatures to create this time: East Asian Dragons.
Join the Common Descent Discord server for more Spook-E discussion! https://discord.gg/CwPBxdh9Ev
Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast
We’re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent
More ways to connect with us: https://linktr.ee/common_descent
You can email us at commondescentpodcast@gmail.com
Or send us physical mail at:
The Common Descent Podcast
1735 W State of Franklin Rd. Ste 5 #165
Johnson City, TN 37604
The Intro and Outro music is “On the Origin of Species” by Protodome.
More music like this at http://ocremix.org.

Oct 7, 2023 • 1h 5min
Spook-E - European Dragons
Welcome ... to Spookulative Evolution.
It’s October, and that means it’s Spook-E Season once again! Each episode in the series, we pick a type of monster and explore how it – or something like it – might evolve under the rules of evolution and natural selection, pulling inspiration from life in the real world. This year’s theme: Dragons.
This episode, we start with something familiar. How might evolution produce a fearsome serpentine beast with four legs and two wings? Our creatures to create this time: European Dragons.
Join the Common Descent Discord server for more Spook-E discussion! https://discord.gg/CwPBxdh9Ev
Join us on Patreon to support the podcast and enjoy bonus content! https://www.patreon.com/commondescentpodcast
We’re an Audible Affiliate Partner! Use this link for a 30-day free trial to Audible: https://www.audibletrial.com/CommonDescent
More ways to connect with us: https://linktr.ee/common_descent
You can email us at commondescentpodcast@gmail.com
Or send us physical mail at:
The Common Descent Podcast
1735 W State of Franklin Rd. Ste 5 #165
Johnson City, TN 37604
The Intro and Outro music is “On the Origin of Species” by Protodome.
More music like this at http://ocremix.org.

Oct 1, 2023 • 1h 56min
Episode 175 - Plant Defenses
Plants are delicious, nutritious, and full of energy, so they’re prime targets for all sorts of herbivores, parasites, and pathogens. But plants aren’t just sitting passively accepting attacks, they use a variety of strategies to defend themselves, from the frustrating to the fatal. This episode, we’re joined by our favorite paleobotanist, Aly Baumgartner, to discuss the many ways plants defend themselves – physically, chemically, and beyond – and the fascinating evolutionary history of plant defenses and their offenders.
In the news: deep-sea fish, Wollemi pines, learning birds, and plant technology.
Time markers:
Intro & Announcements: 00:00:00
News: 00:06:55
Main discussion, Part 1: 00:38:15
Main discussion, Part 2: 01:12:25
Patron question: 01:48:10
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
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
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/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast
Instagram: https://www.instagram.com/commondescentpodcast/
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
PodBean: https://commondescentpodcast.podbean.com/
You can email us at commondescentpodcast(at)gmail.com
Or send us physical mail at:
The Common Descent Podcast
1735 W State of Franklin Rd. Ste 5 #165
Johnson 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 3.0
http://creativecommons.org/licenses/by/3.0/

Sep 17, 2023 • 1h 59min
Episode 174 - The Mesozoic Marine Revolution
Earth’s oceans change over time, not just in their size and shape, but also in the very dynamics of their ecosystems. The stage was set for modern ocean ecosystems by an event called the Mesozoic Marine Revolution, a dramatic restructuring of ecology in shallow seas that saw the rise of many forms of active predatory lifestyles. This episode, we discuss the fossil evidence, the major players, and the ongoing and sometimes contentious research into this crucial period.
In the news: early arthropods, early apes, prehistoric ravens, and long-necked marine reptiles.
Time markers:
Intro & Announcements: 00:00:00
News: 00:07:00
Main discussion, Part 1: 00:35:00
Main discussion, Part 2: 01:18:35
Patron question: 01:51:00
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
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
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/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast
Instagram: https://www.instagram.com/commondescentpodcast/
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
PodBean: https://commondescentpodcast.podbean.com/
You can email us at commondescentpodcast(at)gmail.com
Or send us physical mail at:
The Common Descent Podcast
1735 W State of Franklin Rd. Ste 5 #165
Johnson 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 3.0
http://creativecommons.org/licenses/by/3.0/

Sep 3, 2023 • 2h 12min
Episode 173 - Herbivores (Plant-Eaters)
Exploring the challenges and adaptations of herbivores, the podcast discusses topics such as fossilized squid analysis, fish choking on ammonite shells, predators making eating mistakes, early dinosaur ancestors, the Veneto Raptor Gasine fossil, and the importance of herbivores in ecosystems. They also cover the evolution of herbivory in land ecosystems and dinosaurs, as well as the advantages of sharing a passageway for eating and breathing.

Aug 27, 2023 • 53min
Silver Screen Science - 65 (2023)
This podcast explores the portrayal of prehistoric creatures in movies, including dinosaurs, bugs, and saber-toothed creatures. They discuss how these creatures adhere to common tropes in paleontology media and the exaggerations and mixing of different species. The hosts also delve into the depiction of deadly ancient environments, movie settings, tropes, and the fun of nitpicking scientific inaccuracies in movies. They also discuss a gross body horror moment and language inconsistencies in a movie, as well as the inaccurate portrayal of science in the film being discussed and hint at a future silver screen movie.

Aug 20, 2023 • 2h 34min
Episode 172 - Toothed Whales
Explore the unique characteristics of toothed whales, including dolphins and sperm whales. Discover recent scientific news on leaf-eating birds, tiny whales, whale-like reptiles, and giant whales. Learn about the early relationships between birds and flowering plants and the discovery of a new species of whale. Dive into the evolution of toothed whales from terrestrial to aquatic creatures. Uncover the diversity, behavior, and fascinating features of beaked whales, river dolphins, and orcas. Wrap up with a discussion on the behavior of toothed whales and their use of tails.

Aug 6, 2023 • 1h 39min
Episode 171 - The Tethys Sea
Throughout Earth history, tectonic forces have changed the shape of the continents – and the oceans! You might be familiar with the Tethys Sea as an ancient ocean nestled against Pangaea, home to marine reptiles and more, but there’s actually a whole series of ancient bodies of water that bear this name. In this episode, we explore the various iterations of the Tethys, discuss how geologists study them, and examine how these ancient oceans shaped the world as we know it today.
In the news: crocodile conservation, fighting fossils, whale evolution, and bird tracks.
Time markers:
Intro & Announcements: 00:00:00
News: 00:05:40
Main discussion, Part 1: 00:43:15
Main discussion, Part 2: 01:06:15
Patron question: 01:30:45
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
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
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/CommonDescentPC
Facebook: https://www.facebook.com/commondescentpodcast
Instagram: https://www.instagram.com/commondescentpodcast/
YouTube: https://www.youtube.com/channel/UCePRXHEnZmTGum2r1l2mduw
PodBean: https://commondescentpodcast.podbean.com/
You can email us at commondescentpodcast(at)gmail.com
Or send us physical mail at:
The Common Descent Podcast
1735 W State of Franklin Rd. Ste 5 #165
Johnson 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 3.0
http://creativecommons.org/licenses/by/3.0/