5.8M
Downloads
364
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 Mar 14, 2026
Saturday Mar 14, 2026
Creatures of the night! The world is a different place in the dark, and a whole array of organisms have adapted to being most active outside of daytime hours. This episode, we’ll explore the regular traits that allow nocturnal animals to get by, we’ll discuss some of the ways nocturnal evolution has shaped living species, and we’ll investigate which – if any – of these traits we can identify in the fossil record.
In the news: snake hormones, Australian amphibians, ancient microbes, and baby dinosaurs.
Time markers:
Intro & Announcements: 00:00:00
News: 00:07:25
Main discussion, Part 1: 00:39:15
Main discussion, Part 2: 01:14:30
Patron question: 02:03:45
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/
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
Saturday Mar 07, 2026
Saturday Mar 07, 2026
Welcome ... to Pok-É!
This year is the 30th anniversary of the Pokémon franchise, so we’re picking some of our favorite Legendary Pokémon and speculating upon how they – or something like them – might evolve in real life, pulling inspiration from species throughout our planet’s history!
This episode, we take on the super-ancient Pokémon of Hoenn. How could natural selection result in masters of the sea, land, and sky embroiled in an endless feud? Our creatures to create this time: Kyogre, Groudon, and Rayquaza.
Join the Common Descent Discord server for more Pok-É discussion! https://discord.gg/CwPBxdh9Ev
Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast
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.
Tuesday Mar 03, 2026
Tuesday Mar 03, 2026
One of the benefits our Patrons can receive is a personalized mini-episode on an animal of their choice! Every now and then, we throw them together into a compilation for all to enjoy!
As always, an enormous thanks to all of our wonderful Patrons!
Time markers:
Basal Ornithopods for Aaron: 00:02:00
Orangutans for Justin: 00:22:30
Tardigrades for Jeff: 00:54:25
Trilobites for Timpaxew: 01:16:55
Rauisuchians for Ryan: 01:36:45
Ravens for Bogdraw: 01:56:15
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/
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
Saturday Feb 28, 2026
Saturday Feb 28, 2026
Some bones are only skin deep! In many species of reptiles, mammals, and amphibians, bones called osteoderms develop within the skin, serving as body armor, additional muscular support, display features, or any number of other functions. This episode, we explore the extraordinary diversity of osteoderm anatomy, we take a tour through the many and varied osteoderms of Earth history, and we investigate a long list of hypothesized functions for these unusual bones.
In the news: reptile skin, dinosaur quills, dinosaur bites, and cannibal snakes.
Time markers:
Intro & Announcements: 00:00:00
News: 00:06:25
Main discussion, Part 1: 00:46:35
Main discussion, Part 2: 01:26:35
Patron question: 02:24:05
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/
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
Saturday Feb 28, 2026
Saturday Feb 28, 2026
Welcome ... to Pok-É!
This year is the 30th anniversary of the Pokémon franchise, so we’re picking some of our favorite Legendary Pokémon and speculating upon how they – or something like them – might evolve in real life, pulling inspiration from species throughout our planet’s history!
This episode, we take a tour of the Paradox Pokémon. Where on the tree of life could we find a pair of dragons built for battle and all-terrain travel? Our creatures to create this time: Koraidon and Miraidon.
Join the Common Descent Discord server for more Pok-É discussion! https://discord.gg/CwPBxdh9Ev
Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast
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.
Saturday Feb 21, 2026
Saturday Feb 21, 2026
Welcome ... to Pok-É!
This year is the 30th anniversary of the Pokémon franchise, so we’re picking some of our favorite Legendary Pokémon and speculating upon how they – or something like them – might evolve in real life, pulling inspiration from species throughout our planet’s history!
This episode, we grapple with the Order Pokémon. What biological explanations can we find for an ecological guardian of many, many faces? Our creature to create this time: Zygarde.
Join the Common Descent Discord server for more Pok-É discussion! https://discord.gg/CwPBxdh9Ev
Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast
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.
Saturday Feb 14, 2026
Saturday Feb 14, 2026
In the mid-to-late 20th Century, dinosaurs received a major makeover in their scientific and popular image. This episode, Riley Black takes us through the timeline of the Dinosaur Renaissance. We discuss some of the big scientific milestones and the various players which brought dinosaurs into their modern era, and we’ll explore the early signs and lingering notes of this historic shift.
In the news: sleepy jellyfish, fast mammals, bird beaks, and dinosaur diets.
Find Riley in these places:
https://rileyblack.net/
https://bsky.app/profile/restingdinoface.bsky.social
https://us.macmillan.com/author/rileyblack
Time markers:
Intro & Announcements: 00:00:00
News: 00:07:30
Main discussion, Part 1: 00:53:30
Main discussion, Part 2: 01:43:30
Patron question: 02:56:25
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/
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
Saturday Feb 14, 2026
Saturday Feb 14, 2026
Welcome ... to Pok-É!
This year is the 30th anniversary of the Pokémon franchise, so we’re picking some of our favorite Legendary Pokémon and speculating upon how they – or something like them – might evolve in real life, pulling inspiration from species throughout our planet’s history!
This episode, we confront the Renegade Pokémon. From what ancestors might we get a many-limbed monster from a parallel world? Our creature to create this time: Giratina.
Join the Common Descent Discord server for more Pok-É discussion! https://discord.gg/CwPBxdh9Ev
Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast
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.
Saturday Feb 07, 2026
Saturday Feb 07, 2026
Welcome ... to Pok-É!
This year is the 30th anniversary of the Pokémon franchise, so we’re picking some of our favorite Legendary Pokémon and speculating upon how they – or something like them – might evolve in real life, pulling inspiration from species throughout our planet’s history!
This episode, we set our sights on the Diving Pokémon. How might evolution produce a sea-dwelling bird with a knack for stirring up storms? Our creature to create this time: Lugia.
Join the Common Descent Discord server for more Pok-É discussion! https://discord.gg/CwPBxdh9Ev
Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast
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.
Saturday Jan 31, 2026
Saturday Jan 31, 2026
The Cenozoic Era was home to many unusual ancient mammals, but few so strange as the “gorilla-horses,” the ungulates that swapped their hooves for claws, chalicotheres. This episode, we discuss the features that make these animals distinct and which confused paleontologists for decades, and we go over what is known – and still unknown – about their evolution and lifestyles.
In the news: Let’s Botanize, Prototaxites identity, and giant kangaroos.
Find Let’s Botanize here: https://www.hachettebookgroup.com/titles/ben-goulet-scott/lets-botanize/9781635869040/
Book preorder promo: https://www.letsbotanize.org/preorder-promo.
Time markers:
Intro & Announcements: 00:00:00
News: 00:07:30
Main discussion, Part 1: 00:50:20
Main discussion, Part 2: 01:28:50
Patron question: 01:53:20
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/
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