

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 13, 2018 • 43min
Spook-E - Werewolves
Welcome ... to Spookulative Evolution.
It's October, so we're exploring some more speculative evolution with a spooky twist! Each week this month, we'll be choosing a creepy creature and discussing how it - or something like it - might evolve biologically, pulling inspiration from the critters of the real world.
This episode, we contemplate the evolution of aggressive predators that spread madness with their bite and get particularly nasty when the moon is full. How might evolution produce the lycanthropes of lore? Our creatures to create: Werewolves.
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.

Oct 7, 2018 • 1h 39min
Episode 45 – The Permian Extinction (“The Great Dying”)
252 million years ago, the Earth experienced what might be the worst extinction event of all time, so dramatic that it brought an end to the entire Paleozoic Era, that it resulted in the rise of entirely new types of ecosystems, and that it has come to be known as “The Great Dying.” This episode, we discuss the tragedy, the chaos, and the aftermath of the Permian Extinction.
In the news: the oldest animal, giant elephant birds, mammal jaw evolution, and one really big tree.
Time markers:
Intro & Announcements: 00:00:00
News: 00:04:00
Main discussion, Part 1: 00:27:30
Main discussion, Part 2: 00:59:30
Patron question: 01:33:00
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
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.
Muscial 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 6, 2018 • 44min
Spook-E - Vampires
Welcome ... to Spookulative Evolution.
It's October, so we're exploring some more speculative evolution with a spooky twist! Each week this month, we'll be choosing a creepy creature and discussing how it - or something like it - might evolve biologically, pulling inspiration from the critters of the real world.
This episode, how do you evolve large-bodied nocturnal sanguivores that can spread their condition to normal humans? How can biology arrive at the most iconic children of the night? Our creatures to create this time: Vampires.
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.

Sep 30, 2018 • 1h 41min
SciFest in St. Louis
Will and David recently attended SciFest: Rock, Fossil, Quake! This was an event held at the St. Louis Science Center in collaboration with the Washington University School of Medicine.
The event brought scientists and science enthusiasts face-to-face to talk about geology, earthquakes, and - most exciting for us - fossils (mostly dinosaurs)!
In this episode, we recount some of our impressions and favorite parts of the event, and include interviews with six dinosaur paleontologists who attended the event. You'll hear from:
Dr. Ashley Morhardt, Washington University
Dr. Andy Farke, Raymond Alf Museum
Dr. Denver Fowler, Badlands Dinosaur Museum
Dr. Casey Holliday, University of Missouri
Dr. Liz Freedman Fowler, Dickinson State University
Josh Matthews, Burpee Museum
Huge thanks to all of the above - and everyone else involved in the event - for a fun day of science outreach!
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
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.

Sep 29, 2018 • 44min
Spotlight - Ranjeev Epa (5/5)
Welcome to our Spotlight Series!
We’re talking paleo-science with some paleo-people! In this 5-part series, we’ve interviewed 5 different invertebrate paleontologists about their research and other work.
We wrap up this series by chatting with Ranjeev Epa about his research on the best animals ever (according to him), bivalves - that is, clams, oysters, etc. - and what preyed upon them in the distant past, and also about the paleo-PhD experience
Find Ranjeev in these places:
Twitter @RanjeevEpa
ResearchGate: https://www.researchgate.net/profile/Ranjeev_Epa
If you like Spotlight, let us know and we'll do more of it in the future!
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
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.

Sep 28, 2018 • 49min
Silver Screen Science - The Meg
It's a movie about a giant prehistoric shark that eats a bunch of people. Let's talk science!
In this "science review," we're discussing The Meg (2018) - the portrayal of megalodon, the tropes of the scientists, and the movie's general relationship with real-world science.
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.

Sep 23, 2018 • 1h 46min
Episode 44 - Hybridization
In this episode, we tackle the fascinating – and confusing – subject of hybridization. What are hybrids? Why are hybrids? And if organisms can breed across subspecies and species boundaries, what does that mean for our understanding of important topics like evolution, speciation, and conservation?
In the news: saber-tooth footprints, a Cambrian filter-feeder, false extinctions, and an ancient pet trade.
Time markers:
Intro & Announcements: 00:00:00
News: 00:06:00
Main discussion, Part 1: 00:36:00
Main discussion, Part 2: 01:10:30
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
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.
Muscial 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 22, 2018 • 56min
Spotlight - Chris Mah (4/5)
Welcome to our Spotlight Series!
We’re talking paleo-science with some paleo-people! In this 5-part series, we’ve interviewed 5 different invertebrate paleontologists about their research and other work.
It's Episode 4, and this time we have Dr. Chris Mah with us to explain the science of studying sea stars - past and present - and what it takes (or at least, what it has taken him) to run a science blog!
Find Chris in these places:
Twitter: @echinoblog
The Echinoblog, echinoblog.blogspot.com
If you like Spotlight, let us know and we'll do more of it in the future!
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
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.

Sep 15, 2018 • 53min
Spotlight - Alycia Stigall (3/5)
Welcome to our Spotlight Series!
We’re talking paleo-science with some paleo-people! In this 5-part series, we’ve interviewed 5 different invertebrate paleontologists about their research and other work.
In Episode 3, our guest is Dr. Alycia Stigall, sharing with us her research on the best animals ever (according to her), brachiopods! And also discussing what it’s like to run a whole lab of paleontologists.
Find Alycia in these places:
http://www.alyciastigall.org/
Twitter: @alycia_stigall
If you like Spotlight, let us know and we'll do more of it in the future!
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
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.

Sep 9, 2018 • 1h 42min
Episode 43 - The Great American Biotic Interchange (GABI)
For tens of millions of years, North and South America were separate sisters across the sea, each with their own unique ecosystems. But around 3 million years ago, the Isthmus of Panama brought the landmasses together and kicked off an incredible mass migration of life between the continents. Some species thrived, others suffered, and in the end the very ecosystem structure of both continents was drastically altered, setting the stage for the American wildlife we know today.
In the news: prehistoric parasites, early turtle evolution, teeth through time, and a surprising hominin hybrid. Also, a devastating museum fire in Brazil.
Time markers:
Intro & Announcements: 00:00:00
News: 00:06:00
Main discussion, Part 1: 00:38:30
Main discussion, Part 2: 01:04:00
Patron question: 01:35:00
Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/
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.
Muscial Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/