The Common Descent Podcast

Common Descent
  • 4.8 (735)
  • NATURAL SCIENCES
  • UPDATED SEMIMONTHLY

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!

  1. 5D AGO

    Episode 236 - Chalicotheres

    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

    2h 2m

  2. JAN 18

    Episode 235 - Aquatic Plants

    All plants need water, but some take it to the extreme. This episode, Dr. Aly Baumgartner joins us to explore the many life strategies of plants that live in the water. We’ll discuss the adaptations that allow them to lead an aquatic lifestyle, their evolutionary history as seen through genes and fossils, and the benefits that keep leading plants back to water. In the news: fish diversity, ammonite survivors, gut microbes, and hiding dinosaurs. Time markers: Intro & Announcements: 00:00:00 News: 00:07:55 Main discussion, Part 1: 00:51:00 Main discussion, Part 2: 01:47:00 Patron question: 02:29:20 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

    2h 38m

  3. JAN 4

    Episode 234 - Snails and Slugs

    From deep-sea trenches to your home garden, gastropods (snails and slugs) are among the most diverse and successful groups of animal life in Earth history. This episode, we’ll explore what makes these animals distinctive, we’ll touch on their extraordinary fossil record, and we’ll investigate the many evolutionary experiments gastropods have undergone in their anatomy and lifestyle. In the news: squishable ants, false saber-tooths, bee burrows, and baby ankylosaurs Time markers: Intro & Announcements: 00:00:00 News: 00:06:30 Main discussion, Part 1: 00:43:55 Main discussion, Part 2: 01:40:10 Patron question: 02:10:25 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

    2h 24m

  4. 12/31/2025

    End of the Year Q&A 2025

    Happy New Year! Please enjoy our annual question-answering marathon, now longer than ever! Thank you so much to everyone who listens, shares, and supports the podcast.  Check out our website blog posts 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

    5h 52m

  5. 12/21/2025

    Episode 233 - Flies and Mosquitoes

    Of all the highly successful and capable flying insects in the world, few are as successful or capable as those in the order Diptera. This episode, we’re joined by special guest Brandon Strauss to discuss the distinctive anatomy and varied habits of flies, mosquitoes, and their many two-winged relatives. Then, we’ll peer into the past for a glimpse at the fossil record and dynamic evolutionary history of the group. In the news: long-nosed crocs, river mosasaurs, stampeding sea turtles, and giant snakes Find Brandon at punk_entomology on Instagram, Bluesky, and Twitch! Time markers: Intro & Announcements: 00:00:00 News: 00:05:35 Main discussion, Part 1: 00:38:30 Main discussion, Part 2: 01:38:35 Patron question: 02:25:55 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

    2h 42m

  6. 12/07/2025

    Episode 232 - Vertebrate Origins

    Today, bony animals are some of the most diverse organisms on Earth, but it wasn’t always that way. This episode, we explore what features distinguish vertebrates from their closest relatives, and we dive into the abundant evidence from genetics, embryology, and the fossil record that gives us a glimpse at how our distant ancestors came to be. In the news: swimming hands, early life, Dunkleosteus jaws, and Neanderthal noses Time markers: Intro & Announcements: 00:00:00 News: 00:05:35 Main discussion, Part 1: 00:42:55 Main discussion, Part 2: 01:21:55 Patron question: 02:05:55 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

    2h 16m

  7. 11/23/2025

    Episode 231 - Back to the Water (Secondarily Aquatic Vertebrates)

    Nearly 400 million years ago, an unusual group of fish gave rise to the first land-dwelling vertebrates. Since then, their descendants have repeatedly moved back into the water. This episode, we explore the many ways these species adapt to the challenges of turning a terrestrial body into one that can survive at sea, and we investigate some of the most famous and confusing cases from the fossil record. In the news: post-extinction oceans, croc eggs, damaged dino tails, and meat-eating dung beetles. Time markers: Intro & Announcements: 00:00:00 News: 00:05:45  Main discussion, Part 1: 00:40:15 Main discussion, Part 2: 01:31:35 Patron question: 02:30:30 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

    2h 43m

  8. 11/09/2025

    Episode 230 - Pachycephalosaurs

    The dome-headed dinosaurs are some of the most iconic ancient reptiles, but they’re surprisingly unexplored compared to other dinos. This episode, we explore what makes these dinosaurs unique, what limits our understanding of them, and the many confounding mysteries that paleontologists have been scratching their heads over, including the question of what exactly they were doing with those thick heads. In the news: the I Know Dino children’s book, giant reptile locomotion, and dinosaur hooves. Time markers: Intro & Announcements: 00:00:00 News: 00:08:45  Main discussion, Part 1: 00:46:32 Main discussion, Part 2: 01:12:05 Patron question: 02:05:30 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

    2h 16m
See All (355)

Hosts & Guests

4.8
out of 5
735 Ratings

About

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!

Information

  • Creator
    Common Descent
  • Years Active
    2017 - 2026
  • Episodes
    355
  • Rating
    Clean
  • Copyright
    © Copyright 2017 . All rights reserved.
  • Show Website
    The Common Descent Podcast

You Might Also Like