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PODCAST

The Common Descent Podcast

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

science natural sciences

All Episodes

32:54

Leaf it to Us - Pilot Episode

The Common Descent Podcast ·

2025/03/10

Enjoy this special preview of the upcoming podcast Leaf it to Us, hosted by Nora Spurling and Dr. Aly Baumgartner. In this pilot episode, they discuss the fascinating phenomenon of sex-changing trees! The first season of Leaf it to Us is in the works, and we’re excited to hear your feedback for this pilot episode. Please reach out to us and let us know what you think! You can contact us and find more from Common Descent here: https://linktr.ee/common_descent The Intro and Outro music is “Late

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01:41:45

Episode 212 - Temnospondyls

The Common Descent Podcast ·

2025/03/02

When vertebrates first moved onto land, they gave rise to a variety of amphibious tetrapods. The most diverse and successful of these were temnospondyls, which were some of the most important species in early land and freshwater environments. This episode, we’ll explore temnospondyls’ evolutionary history, their ecological variety, and their mysterious connection to modern amphibians.In the news: domesticating dogs, early birds, color evolution, and changing seeds. Time markers: Intro &

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02:34:32

Episode 211 - Edward Drinker Cope

The Common Descent Podcast ·

2025/02/16

E. D. Cope is one of the most recognizable and notorious names in paleontology history. He did some of the most important early work in vertebrate paleontology, he was one half of the dueling duo in the infamous Bone Wars, he named some of the most famous fossil animals, and he was profoundly irresponsible and unethical with his science. This episode, we’re joined by Astrid Lundberg to explore the life and legacy of Edward Cope, investigating such questions as: How did he get his start? What lasting

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02:25:13

Episode 210 - Bones

The Common Descent Podcast ·

2025/02/02

The evolution of mineralized tissues is responsible not only for the incredible success and diversity of vertebrate animals, but also for their extraordinarily informative fossil record. This episode, we explore the detailed anatomy of bones and their deep evolutionary history, we touch on some of the ways they’re important for paleontology, and we take some time to discuss the secrets that can be found inside of ancient bones.In the news: croc vs pterosaur, hominin diets, ears and gills, and

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02:27:14

Episode 209 - Chimaeras

The Common Descent Podcast ·

2025/01/19

You might know them as ghost sharks, rat fish, or spook fish. Chimaeras are close cousins of sharks and rays, equipped with distinctive and unusual features in their fins, teeth, and reproductive structures. In today’s oceans, chimaeras are rare and easy to miss, but their extended family includes some of the most diverse and iconic fish of the Paleozoic seas. In this episode, we’ll explore the traits that set chimaeras apart, we’ll take a tour through their ancient relatives, and we’ll investigate

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01:49:03

Episode 208 - The Karoo Supergroup

The Common Descent Podcast ·

2025/01/05

Southern Africa is home to an incredible sequence of geologic formations that span more than 100 million years of Earth history. These rocks, collectively called the Karoo Supergroup, are an extraordinary resource for studying evolution and extinction across the Late Paleozoic and Early Mesozoic Eras. This episode, we’ll explore the deep history of this vast geologic resource, and we’ll sample some of the discoveries that have been made there.In the news: dormancy evolution, Pangaean amphibians,

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05:22:32

End of the Year Q&A 2024

The Common Descent Podcast ·

2024/12/31

Happy New Year! Welcome back to our annual, traditional question-answering marathon! As always, a big thank you to everyone who submitted questions for this Q&A, everyone who has listened and shared and engaged with us throughout the year, and especially to our Patrons, who make this podcast possible. See you in 2025! Check out our website for our blog posts and more: http://commondescentpodcast.com/ Join us on Patreon to support the podcast and enjoy bonus content:

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02:09:22

Episode 207 - Therizinosaurs

The Common Descent Podcast ·

2024/12/22

Most theropod dinosaurs are sleek predators built for speedy movement and efficient hunting. Therizinosaurs are unusual. They’re slow and stocky and, in many ways, more like the famous plant-eating dinosaurs. This episode, we’ll explore the diversity of therizinosaurs, the winding path that paleontologists took to understand them, the many ways they became specialized for a diet of plants, and what was going on with those claws. In the news: Parasaurolophus crests, Scottish bears, anglerfish

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02:07:54

Episode 206 - Vestigial Structures

The Common Descent Podcast ·

2024/12/08

Evolution involves the innovation of new features, but even more reduction of old features. Those reduced features might disappear, develop in a new direction, or just linger as a functionless evidence of deep ancestry. This episode, we explore how we identify vestigial traits, how they help us understand evolutionary history, and the various evolutionary paths vestigial structures can take.In the news: giant worm lizards, drumstick evolution, dinosaur poop, and pterosaur transitions. Time

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01:20:06

Spotlight 2024 - Kallie, Gabriel, and Blake, Eons

The Common Descent Podcast ·

2024/12/04

Welcome to Spotlight 2024! In this series, we’re sitting down with our fellow paleo-podcasters to discuss Science Communication. It’s the final episode! And we’re thrilled to be joined by Kallie, Gabriel, and Blake from PBS Eons and their podcast, Eons: Surviving Deep Time! Find Eons here: https://podcasts.apple.com/us/podcast/eons-surviving-deep-time/id1610360633 https://www.youtube.com/@eons Find Kallie online at @fossil_librarian and www.kallielmoore.com Kallie’s book, Tales of the Prehistoric

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02:20:32

Episode 205 - Parasitic Plants

The Common Descent Podcast ·

2024/11/24

Not all plants rely on the sun for their energy. Thousands of species are adapted for stealing nutrients from other plants. This episode, Aly joins us to explore the diversity and evolution of parasitic plants, their varied lifestyles, and their impacts on their hosts. We also examine the surprising nature of the parasitic plant fossil record.In the news: a frozen sabertooth kitten, plesiosaur swimming, wing evolution, and dinosaur body armor. Time markers: Intro & Announcements: 00:00:00 News:

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02:14:58

Episode 204 - The Messinian Salinity Crisis

The Common Descent Podcast ·

2024/11/10

Around six million years ago, the Mediterranean Sea dried up, wreaking havoc with local marine life and leaving a dramatic legacy in the geologic record in the form of massive salt deposits. This episode, we’ll explore the evidence for this event, why it happened, how it ended, and the impact it left in the fossil record. In the news: marine crocs, giant cicadas, giant tadpoles, and drowning bats. Time markers: Intro & Announcements: 00:00:00 News: 00:04:25 Main discussion, Part 1: 00:42:35 Main

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01:09:36

Spotlight 2024 - Amy and Meaghan, Weird and Dead

The Common Descent Podcast ·

2024/11/06

Welcome to Spotlight 2024! In this series, we’re sitting down with our fellow paleo-podcasters to discuss Science Communication.This time, we’re hanging out with Amy and Meaghan from Weird & Dead! Find Weird & Dead here: www.weirdanddead.com www.patreon.com/WeirdandDeadPodcast More from Amy and Meaghan: www.meaghanwetherell.com www.geopetalfabric.com https://dinosaurtrips.com/all-women-jurassic-coast/ Connect with Common Descent: https://linktr.ee/common_descent Join us on Patreon to

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53:11

Cute-E - Jackalopes

The Common Descent Podcast ·

2024/11/02

Welcome … to Cute-E!Every October during Spook-E, we have fun speculatively evolving monsters from myths and stories, but we leave out the cuddlier side of fiction. In Cute-E, we’re choosing kinder creatures and discussing 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 Tiny Monsters. This episode, we look at a local legend. How might real-world evolution result in elusive and mysterious

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02:27:46

Episode 203 - Rodents

The Common Descent Podcast ·

2024/10/27

Mice, rats, beavers, and more! Rodents are some of the most diverse and successful mammals on the planet. This episode, we discuss what traits make rodents special, and we explore their incredible living diversity. Then we’ll take a trip to the past to investigate early rodent evolution, some highlights of their fossil record, and some of their ancient competitors.In the news: Arthropleura’s head, raptorial birds, dinosaur eggs, and evolution education. Time markers: Intro & Announcements:

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56:00

Spook-E - Redcaps

The Common Descent Podcast ·

2024/10/26

Welcome ... to Spookulative Evolution. October is Spook-E Season on Common Descent! Each episode, we pick monsters from fiction and fable and ponder 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 Tiny Monsters. This episode, there’s trouble afoot. How could biological processes generate ornery little fiends with gruesome headgear? Our creatures to create this time: Redcaps. Join the Common

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59:45

Spook-E - Salamanders

The Common Descent Podcast ·

2024/10/19

Welcome ... to Spookulative Evolution. October is Spook-E Season on Common Descent! Each episode, we pick monsters from fiction and fable and ponder 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 Tiny Monsters. This episode, things heat up a bit. What selective pressures might lead to the evolution of skittering creatures with a fondness for fire? Our creatures to create this time: the

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02:56:14

Episode 202 - Fungi and Animals

The Common Descent Podcast ·

2024/10/13

It’s the final part of our fungal trilogy! Fungi and animals interact in a wide variety of ways, from parasitism to partnership to predation. This episode, we explore how fungi and animals have evolved alongside each other and the adaptations they have developed to take advantage of each other, and we’ll examine how far back we can find these fungus-animal interactions in the fossil record. In the news: pterosaur feet, sauropod tails, a Cretaceous crater, and fossil fireflies. Time markers: Intro

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01:08:12

Spook-E - Fairies

The Common Descent Podcast ·

2024/10/12

Welcome ... to Spookulative Evolution. October is Spook-E Season on Common Descent! Each episode, we pick monsters from fiction and fable and ponder 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 Tiny Monsters. This episode, we explore a favorite of fanciful fables. How might natural selection produce diminutive humanoids with a knack for mischief and mayhem? Our creatures to create this

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01:03:34

Spook-E - Gremlins

The Common Descent Podcast ·

2024/10/05

Welcome ... to Spookulative Evolution. October is Spook-E Season on Common Descent! Each episode, we pick monsters from fiction and fable and ponder 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 Tiny Monsters. This episode, we’ve chosen a modern classic. How might we evolve adorable fluffy critters that transform into dangerous troublemakers? Our creatures to create this time:

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