The Common Descent Podcast

Common Descent
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Nov 1, 2025 • 59min

Cute-E – Pikmin

Welcome … to Cute-E! During our Spook-E series, we speculate on the evolution of monsters from myth and popular media, but we leave out fiction’s more adorable creatures. In Cute-E, we choose cuddlier critters and discuss how they – or something like them – could evolve here on Earth, pulling inspiration from real-world species across our planet’s history. This year’s theme is Monsters of Nintendo. This episode, we pluck precious partners from the soil. What could be the evolutionary background of tiny and colorful workers that blend the features of plants and animals? Our creatures to create this time: Pikmin. Join the Common Descent Discord server for more Spook-E and Cute-E 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.
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Oct 26, 2025 • 2h 21min

Episode 229 - Myrmecophagy (Ant-Eating)

Generally speaking, it’s not a good idea to mess with ants. But several lineages of animals have evolved to be ant-eating specialists. This episode, we discuss anteaters, the suite of adaptations that allow them to focus on ant-eating, and the variety of other species that have evolved similar adaptations for the same purpose. We explore the evolutionary history of ant-eating mammals and even dinosaurs through the fossil record and genetic evidence. In the news: butt-drags, ancient leeches, Neanderthal tracks, and spider genomes. Time markers: Intro & Announcements: 00:00:00 News: 00:06:00 Main discussion, Part 1: 00:40:10 Main discussion, Part 2: 01:40:15 Patron question: 02:08:30 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
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Oct 25, 2025 • 1h 9min

Spook-E – Metroids

Welcome ... to Spookulative Evolution. Spook-E Season is back! All throughout October, we pick monsters from myth and media and speculate how they – or something like them – could evolve here on Earth, pulling inspiration from real-world species across our planet’s history. This year’s theme is Monsters of Nintendo! This episode, we take the hunt across the stars. What biological explanation can we find for jellyfish-shaped parasites with a complex and terrifying life cycle? Our creatures to create this time: Metroids. 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 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.
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Oct 18, 2025 • 1h 3min

Spook-E – Kremlings

Welcome ... to Spookulative Evolution. Spook-E Season is back! All throughout October, we pick monsters from myth and media and speculate how they – or something like them – could evolve here on Earth, pulling inspiration from real-world species across our planet’s history. This year’s theme is Monsters of Nintendo! This time, we’re sailing with the scourges of DK Isle. What circumstances might lead to the evolution of crocodile-faced humanoid pirates? Our creatures to create this time: Kremlings. 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 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.
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Oct 12, 2025 • 1h 55min

Episode 228 - Dinosaur Provincial Park

Located in southeastern Alberta is a stretch of gorgeous badlands that are home to some of the world’s absolute best Late Cretaceous fossils. This episode, we explore how Dinosaur Provincial Park earned its designation as a UNESCO World Heritage Site, we list off some of the famous dinosaurs who once lived there, and we discuss a fraction of the many fossil discoveries that have been made at the Park since the late 1800s. In the news: Cretaceous crocs, baby pterosaurs, late megaraptorans, and early lizards. Time markers: Intro & Announcements: 00:00:00 News: 00:06:25 Main discussion, Part 1: 00:47:45 Main discussion, Part 2: 01:08:35 Patron question: 01:47:00 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 Subscribe to Curiosity Box using our Affiliate Link: https://www.curiositybox.com/CommonDescent And get 25% off the first box with code descent25 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
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Oct 11, 2025 • 57min

Spook-E – Octoroks

Welcome ... to Spookulative Evolution. Spook-E Season is back! All throughout October, we pick monsters from myth and media and speculate how they – or something like them – could evolve here on Earth, pulling inspiration from real-world species across our planet’s history. This year’s theme is Monsters of Nintendo! This episode, we take a trip to the Kingdom of Hyrule. How might nature develop an octopus-like monster with a penchant for projectiles? Our creatures to create this time: Ocotoroks. 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 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.
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Oct 4, 2025 • 1h 6min

Spook-E – Piranha Plants

Welcome ... to Spookulative Evolution. Spook-E Season is back! All throughout October, we pick monsters from myth and media and speculate how they – or something like them – could evolve here on Earth, pulling inspiration from real-world species across our planet’s history. This year’s theme is Monsters of Nintendo! This episode, we begin with a baddie from the Mushroom Kingdom. What evolutionary path might generate a pipe-dwelling plant-like predator? Our creatures to create this time: Piranha Plants. 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 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.
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Sep 28, 2025 • 2h 27min

Episode 227 - Beaks

The faces of vertebrate animals are often soft and full of teeth, but there is a common alternative. Birds, turtles, and many more groups have developed toothless snouts covered in a tough sheath. This episode, we’ll explore the defining features of beaks and their various functions. And we’ll take a tour through animal life past and present to investigate the reasons behind the repeated evolution of beaks among dinosaurs and beyond. In the news: Life on Mars, ancient sharks, mammoth microbes, and ant-eaters. Time markers: Intro & Announcements: 00:00:00 News: 00:07:00 Main discussion, Part 1: 00:42:40 Main discussion, Part 2: 01:38:25 Patron question: 02:21:50 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 Subscribe to Curiosity Box using our Affiliate Link: https://www.curiositybox.com/CommonDescent And get 25% off the first box with code descent25 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
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Sep 14, 2025 • 2h 5min

Episode 226 - Dodos

Dodos are probably the single most famous case of recent human-induced extinction. First documented in the late 1500s and extinct within a century, dodos have become a global reminder of the devastating potential of human activity. This episode, we review the brief history of human interactions with dodos, and we explore what recent research and fossil evidence has taught us about these birds and their closest relatives. In the news: Cretaceous crocs, extra-spiky dinosaurs, turtles of the sea, and cave fish evolution. Time markers: Intro & Announcements: 00:00:00 News: 00:05:45 Main discussion, Part 1: 00:33:10 Main discussion, Part 2: 01:06:00 Patron question: 01:56:50 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 Subscribe to Curiosity Box using our Affiliate Link: https://www.curiositybox.com/CommonDescent And get 25% off the first box with code descent25 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
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Aug 31, 2025 • 2h 56min

Episode 225 - Forests

Forests are among the most widespread and diverse biomes on our planet. This episode, we’re joined by our favorite paleobotanist, Dr. Aly Baumgartner, to explore what defines a forest, how these habitats function, and how they differ around the globe. Then, we’ll take a trip into the past to discuss how paleontologists study ancient forests and how these biomes have changed over hundreds of millions of years. In the news: ocean sediments, early penguins, island foxes, Canadian dragonflies, and ancient deer. Time markers: Intro & Announcements: 00:00:00 News: 00:06:00 Main discussion, Part 1: 00:37:30 Main discussion, Part 2: 01:47:10 Patron question: 02:48:35 Check out our website for this episode’s blog post and more: http://commondescentpodcast.com/ Listen to more Plants with Aly on Leaf it to Us! https://commondescentpodcast.com/leaf-it-to-us/ Join us on Patreon to support the podcast and enjoy bonus content: https://www.patreon.com/commondescentpodcast Subscribe to Curiosity Box using our Affiliate Link: https://www.curiositybox.com/CommonDescent And get 25% off the first box with code descent25 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

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