The Common Descent Podcast
Episode 91 - Frogs

Episode 91 - Frogs

July 11, 2020

Roughly nine out of ten living amphibian species are frogs. They’re incredibly diverse and successful, and they have been since the Jurassic Period. But the origins of frogs and their fellow modern amphibians is shrouded in mystery. In this episode, we discuss what makes frogs special, what their fossil record looks like, and what paleontologists know and don’t know about the earliest evolution of modern amphibians.

In the news: colorful insects, salamander evolution, saber-toothed marsupials, and venomous caecilians?

News: 00:04:30
Main discussion: 00:36:00
Mid-discussion break: 01:11:00
Patron question: 01:41:00

Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/

New merch at the Common Descent Store! http://zazzle.com/common_descent
Featuring art by Rob Soto! https://www.rob-soto.com/

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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.

Episode 90 - “Living Fossils”

Episode 90 - “Living Fossils”

June 27, 2020

"Living fossils" aren't really a thing, not the way they're typically talked about anyway, and the term can be a source of debate among scientists and science communicators. In this episode, we talk about how this term is used and why some scientists defend it while others (including us!) aren't fans.

In the news: horned gophers, dinosaur eggs, giant eggs, and croc tracks.

News: 00:05:00
Main discussion: 00:37:30
Mid-discussion break: 01:16:00
Patron question: 01:54:00

In light of current events, we invite you to explore these links to educate yourself, as we have been doing, about the subject of racial injustice:
Smithsonian NMAAHC - Talking About Race
https://nmaahc.si.edu/learn/talking-about-race
TimeScavengers - Black Lives Matter
https://timescavengers.blog/2020/06/01/black-lives-matter/
Ally Anti-Racism Resources
https://docs.google.com/document/d/1MjUESaOh2H-846KKiHUWHDUIhi3PlaFts-rqy9EQ43g/edit# 
We’ve also made a donation to the NAACP Legal Defense & Education Fund:
https://www.naacpldf.org/

Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/

New merch at the Common Descent Store! http://zazzle.com/common_descent
Featuring art by Rob Soto! https://www.rob-soto.com/

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.

Episode 89 - The Burgess Shale

Episode 89 - The Burgess Shale

June 13, 2020

In the Canadian Rockies of British Columbia sits one of the most important, well-studied, and scientifically influential fossil sites in the world. The Burgess Shale not only provides us a glimpse into the tail end of the Cambrian Explosion, and not only yields tens of thousands of fossil specimens, but also includes some of the most exceptional fossil preservation of any fossil locality anywhere. This episode, we’ll dive into how it got that way, and what it has to tell us about some of Earth's earliest animal communities.

In the news: baby sharks, hungry dinosaurs, a pregnant ichthyosaur, and one dino’s last meal.

News: 00:06:30
Main discussion: 00:34:00
Mid-discussion break: 01:00:00
Patron question: 01:37:00

In light of current events, we invite you to explore these links to educate yourself, as we have been doing, about the subject of racial injustice:
Smithsonian NMAAHC - Talking About Race
https://nmaahc.si.edu/learn/talking-about-race
TimeScavengers - Black Lives Matter
https://timescavengers.blog/2020/06/01/black-lives-matter/
Ally Anti-Racism Resources
https://docs.google.com/document/d/1MjUESaOh2H-846KKiHUWHDUIhi3PlaFts-rqy9EQ43g/edit# 
We’ve also made a donation to the NAACP Legal Defense & Education Fund:
https://www.naacpldf.org/

Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/

New merch at the Common Descent Store! http://zazzle.com/common_descent
Featuring art by Rob Soto! https://www.rob-soto.com/

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.

Live Chat - Conservation Paleontology

Live Chat - Conservation Paleontology

June 4, 2020

In this series, we invite scientists to live Q&As on YouTube, where we discuss topics we’ve covered before on the podcast.

This episode, we discussed Conservation Paleontology (Episode 8) with Dr. Rachel Short and Dr. Jeff Martin of Texas A&M University. 

You can find the video recording on our YouTube channel: https://www.youtube.com/playlist?list=PLfdiT8Klm_YO04cvDqZ-_O3Iiq0J5GZJz

Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/

New merch at the Common Descent Store! http://zazzle.com/common_descent
Featuring art by Rob Soto! https://www.rob-soto.com/

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.

Live Chat - Paleopathology

Live Chat - Paleopathology

June 2, 2020

In this series, we invite scientists to live Q&As on YouTube, where we discuss topics we’ve covered before on the podcast.

This episode, we discussed Paleopathology (Episode 84) with Laura Emmert of the Gray Fossil Site. 

You can also watch the video recording of this Live Chat on our YouTube channel: https://www.youtube.com/playlist?list=PLfdiT8Klm_YO04cvDqZ-_O3Iiq0J5GZJz

Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/

New merch at the Common Descent Store! http://zazzle.com/common_descent
Featuring art by Rob Soto! https://www.rob-soto.com/

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.

Episode 88 - Evolution of Teeth

Episode 88 - Evolution of Teeth

May 30, 2020

Start exploring vertebrate evolution and paleontology, and it won’t be long before you end up on the subject of teeth. These handy structures are enormously significant not only for the history of life, but in the study of it as well. In this episode we discuss what makes a tooth a tooth, how teeth came to be, and we muse at length over the incredible diversity and scientific usefulness of teeth.

News: 00:05:00
Main discussion: 00:35:30
Mid-discussion break: 01:10:00
Patron question: 01:56:00

Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/

New merch at the Common Descent Store! http://zazzle.com/common_descent
Featuring art by Rob Soto! https://www.rob-soto.com/

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/

Live Chat - Turtles

Live Chat - Turtles

May 19, 2020

In this series, we invite scientists to live Q&As on YouTube, where we discuss topics we’ve covered before on the podcast.

This episode, we discussed Turtles with Dr. Steven Jasinski of the State Museum of Pennsylvania. You can find Steven on Twitter at @StevenJasinski.

You can also watch the video recording of this Live Chat on our YouTube channel: https://www.youtube.com/playlist?list=PLfdiT8Klm_YO04cvDqZ-_O3Iiq0J5GZJz

Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/

New merch at the Common Descent Store! http://zazzle.com/common_descent
Featuring art by Rob Soto! https://www.rob-soto.com/

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.

Episode 87 - Ceratopsians, the Horned Dinosaurs

Episode 87 - Ceratopsians, the Horned Dinosaurs

May 16, 2020

From massive Triceratops to tiny Psittacosaurus, few dinosaurs are as famous, charismatic, or commonly preserved as ceratopsians. In this episode, we’ll follow this group’s evolutionary journey from little bipeds to horned behemoths and discuss some of the biggest scientific questions about their history, their identification, and of course their magnificently adorned noggins.

In the news: the Tully monster, very strange mammals, dinosaur hunting habits, and the tail of Spinosaurus.

Please pardon our audio issues in this episode.

News: 00:06:00
Main discussion: 00:42:30
Mid-discussion break: 01:17:00
Patron question: 01:51:30

Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/

New merch at the Common Descent Store! http://zazzle.com/common_descent
Featuring art by Rob Soto! https://www.rob-soto.com/

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/

Live Chat - Ancient DNA

Live Chat - Ancient DNA

May 12, 2020

In this series, we invite scientists to live Q&As on YouTube, where we discuss topics we’ve covered before on the podcast.

This episode, we discussed Ancient DNA with Dr. Leigha Lynch of Washington University. You can find Leigha on Twitter at @PantheraLeigha.

You can also watch the video recording of this Live Chat on our YouTube channel: https://www.youtube.com/playlist?list=PLfdiT8Klm_YO04cvDqZ-_O3Iiq0J5GZJz

Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/

New merch at the Common Descent Store! http://zazzle.com/common_descent
Featuring art by Rob Soto! https://www.rob-soto.com/

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.

Episode 86 - New Zealand

Episode 86 - New Zealand

May 2, 2020

In the South Pacific Ocean, there is a family of islands that have been isolated since the Cretaceous Period. New Zealand – past and present – has been home to some of the most unique and fascinating ecosystems on the planet, from its reptiles to its birds to its plants. This episode, we visit New Zealand and take a trip through the fossil and geology history that made it the wonderful place it is today.

In the news: lizard birth, Cretaceous shark extinction, traveling monkeys, and marine croc ears.

News: 00:08:30
Main discussion: 00:35:00
Mid-discussion break: 01:02:30
Patron question: 01:38:00

Check out our blog for bonus info and pictures:
http://commondescentpodcast.wordpress.com/

New merch at the Common Descent Store! http://zazzle.com/common_descent
Featuring art by Rob Soto! https://www.rob-soto.com/

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/