What are the key takeaways from this The Infinite Monkey Cage episode?

Key insights include: **Extinction scale:** Approximately 95-97% of all species that ever existed are already extinct, with five major extinction events in Earth's history. The current sixth extinction event proceeds at the fastest speed ever recorded, making paleontology critical for understanding ecosystem recovery patterns.; **Cloning limitations:** The Pyrenean ibex was successfully cloned and resurrected but died immediately, becoming the only species to go extinct twice. Cloning requires intact DNA, surrogate species compatibility, and known gestation periods—all extremely difficult to achieve with long-extinct animals like mammoths or dinosaurs.; **Mammoth resurrection barriers:** Bringing back woolly mammoths faces insurmountable obstacles including incomplete genome sequences (less than 5% recovered), unknown chromosome numbers, incompatible African elephant surrogates with seven-foot vaginal tracts, and no knowledge of mammoth gestation periods or social structures needed for survival.

What did Susie Maidman and Adam Rutherford discuss on The Infinite Monkey Cage?

The Infinite Monkey Cage examines de-extinction science, exploring whether species like woolly mammoths or dodos can be resurrected through back-breeding, genetic engineering, or cloning, and whether these efforts serve conservation or distract from protecting existing biodiversity. Key topics include: **Extinction scale:** Approximately 95-97% of all species that ever existed are already extinct, with five major extinction events in Earth's history. The current sixth extinction event proceeds at the fastest speed ever recorded, making paleontology critical for understanding ecosystem recovery patterns.; **Cloning limitations:** The Pyrenean ibex was successfully cloned and resurrected but died immediately, becoming the only species to go extinct twice. Cloning requires intact DNA, surrogate species compatibility, and known gestation periods—all extremely difficult to achieve with long-extinct animals like mammoths or dinosaurs..

How long is this episode of The Infinite Monkey Cage?

This episode is 42 minutes long. SignalCast provides an AI-generated summary so you can get the key insights in about 3 minutes.

The Infinite Monkey Cage

Is Extinction the End?

December 18, 2024

42 min episode · 2 min read

Susie Maidman,Adam Rutherford

Episode

42 min

Read time

2 min

Topics

Productivity, Health & Wellness, Software Development

AI-Generated Summary

Published Dec 25, 2025

Key Takeaways

✓Extinction scale: Approximately 95-97% of all species that ever existed are already extinct, with five major extinction events in Earth's history. The current sixth extinction event proceeds at the fastest speed ever recorded, making paleontology critical for understanding ecosystem recovery patterns.
✓Cloning limitations: The Pyrenean ibex was successfully cloned and resurrected but died immediately, becoming the only species to go extinct twice. Cloning requires intact DNA, surrogate species compatibility, and known gestation periods—all extremely difficult to achieve with long-extinct animals like mammoths or dinosaurs.
✓Mammoth resurrection barriers: Bringing back woolly mammoths faces insurmountable obstacles including incomplete genome sequences (less than 5% recovered), unknown chromosome numbers, incompatible African elephant surrogates with seven-foot vaginal tracts, and no knowledge of mammoth gestation periods or social structures needed for survival.
✓Conservation priorities: De-extinction projects focus on charismatic megafauna while critical species like Indonesian seagrass face extinction within thirty years. When seagrass disappears, entire ecosystems collapse, yet funding flows toward scientifically implausible mammoth projects rather than protecting existing biodiversity that maintains functional ecosystems.

What It Covers

The Infinite Monkey Cage examines de-extinction science, exploring whether species like woolly mammoths or dodos can be resurrected through back-breeding, genetic engineering, or cloning, and whether these efforts serve conservation or distract from protecting existing biodiversity.

Key Questions Answered

•Extinction scale: Approximately 95-97% of all species that ever existed are already extinct, with five major extinction events in Earth's history. The current sixth extinction event proceeds at the fastest speed ever recorded, making paleontology critical for understanding ecosystem recovery patterns.
•Cloning limitations: The Pyrenean ibex was successfully cloned and resurrected but died immediately, becoming the only species to go extinct twice. Cloning requires intact DNA, surrogate species compatibility, and known gestation periods—all extremely difficult to achieve with long-extinct animals like mammoths or dinosaurs.
•Mammoth resurrection barriers: Bringing back woolly mammoths faces insurmountable obstacles including incomplete genome sequences (less than 5% recovered), unknown chromosome numbers, incompatible African elephant surrogates with seven-foot vaginal tracts, and no knowledge of mammoth gestation periods or social structures needed for survival.
•Conservation priorities: De-extinction projects focus on charismatic megafauna while critical species like Indonesian seagrass face extinction within thirty years. When seagrass disappears, entire ecosystems collapse, yet funding flows toward scientifically implausible mammoth projects rather than protecting existing biodiversity that maintains functional ecosystems.

Notable Moment

The panel reveals that proposed mammoth resurrection would require impregnating intelligent African elephants with unknown-term pregnancies of incompatible species, resulting in confused baby mammoths born into wrong social structures within climates they never evolved to survive—a recipe for immediate failure.

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Episode Transcript

This BBC podcast is supported by ads outside The UK. Make their holiday unforgettable with a gift that says it all from Pandora Jewelry. A gift that tells a story and shows you know theirs. That doesn't just sparkle, but speaks. From new festive charms to forever rings and personal engravings. This season, give a gift that's perfectly theirs. Whether you're shopping for a shiny surprise for your significant other, matching bracelets to celebrate your friendship, or a heartfelt gift for a family member, say more this holiday season with Pandora. Shop now at pandora.net or visit your closest Pandora store. Stay in the game with Michigan orthopedic surgeons. Whether it's a sprained ankle on the soccer field, a broken bone during football practice, or a weekend pickup game injury, we've got you covered. Our fellowship trained surgeons and advanced practice providers deliver expert care for sports injuries. Same day walk in visits at our urgent ortho clinics in Royal Oak and Shelby Township with extended after hours and weekend availability. Visit our after hours urgent ortho clinics in Royal Oak and Shelby Township, or go to miortho.care to learn more. When the holidays start to feel a bit repetitive, reach for Sprite Winter Spice Cranberry and put your twist on tradition. It's a refreshing way to shake things up this sipping season and only for a limited time. Sprite, obey your thirst. BBC Sounds. Music, radio, podcasts. I'm Brian Cox. I'm Robin Inch. And this is the Infinite Monkey Cage. Now look out of your window if you're sat at home listening to this, and, you know, what can you see? Perhaps a a song thrush, maybe you can see an urban fox near your bins, a magpie, or or if you're lucky, two. But imagine instead, you saw a roaming Tyrannosaurus rex that was eating your cats. Well, that's the kind of world that the boffins are trying to create. Why why why are you adopting that tone? Well, I was told to adopt that tone because apparently we're not getting enough of the Jeremy Vine phone in audience. And, this was the kind of thing that would draw them in, boffins. So, You you might wonder what Robin is on about. But today, we're looking at the subject of de extinction, bringing extinct creatures back into the biosphere. Basically, Jurassic Park. We know how that ended with a sequel, another sequel. Now is it possible to bring species like the woolly mammoth or the dodo back from the dead? If so, how would we do it? And even if we have the technology, should we do it? So today, we're joined by a paleontologist, a biologist, and a comedian who has degrees in pathology, virology, and forensic science, which is the best kind of episode of Colombo because you would definitely get away with it. And they are Hi. I'm Susie Maidman. I'm a paleontologist at the Natural History Museum, and the animal I would not bring …

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