Nature frozen in time
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This episode of The Naked Scientist explores the remarkable phenomenon of biological preservation in ice and permafrost, revealing how nature's deep freeze acts as a natural time capsule. From the 40,000-year-old woolly mammoth Yuka, whose DNA and even RNA remain intact, to ancient plant seeds like the 30,000-year-old narrow-leaved campion revived through tissue culture, the episode highlights the astonishing resilience of life. Scientists at Colossal Laboratories are using advanced gene editing to engineer Asian elephant cells with mammoth traits, aiming to resurrect the species. Meanwhile, researchers in Svalbard are uncovering dormant microbes and viruses trapped in glacial ice, studying their survival mechanisms and potential role in climate change and antibiotic resistance. The episode underscores the scientific and ethical implications of de-extinction, conservation, and the long-term preservation of genetic material in Earth's frozen archives.
Ancient DNA from woolly mammoths up to 40,000 years old can still be recovered and used for de-extinction projects.
Plant seeds frozen in permafrost for tens of thousands of years can be revived using tissue culture techniques.
Microbes and viruses in glacial ice can remain viable for millennia, with potential implications for climate and disease.
The Svalbard Global Seed Vault uses permafrost to safeguard crop biodiversity for future generations.
Gene editing and assisted reproductive technologies are key tools in the effort to bring extinct species back to life.
…and 3 more takeaways available in PodZeus
Welcome to the Frozen Archive
Chris Smith introduces the episode's theme: nature's deep freeze as a repository of ancient life, from mammoths to microbes, and sets the stage for a journey into the science of preservation in ice.
The Woolly Mammoth Revival Project
“We want to identify the core genes that really made a mammoth a mammoth and bring those back and engineer them into their closest living relative being the Asian elephant...”
Plant Life Frozen in Time
“They were able to regenerate that into callus... and then using various molecular biology techniques, you can take that sort of callus... and induce shoots.”
Microbial Survival in Glacial Ice
“There's no evidence that there's anything particularly pathogenic to be found in any of Earth's glaciers... I haven't even caught as much of a sniffle while doing it.”
The Future of Frozen Archives
The episode concludes by reflecting on the broader implications of frozen biological archives—conservation, de-extinction, climate change, and the ethical dimensions of bringing back lost species and ecosystems.
“We want to identify the core genes that really made a mammoth a mammoth and bring those back and engineer them into their closest living relative being the Asian elephant...”
“There's no evidence that there's anything particularly pathogenic to be found in any of Earth's glaciers... I haven't even caught as much of a sniffle while doing it.”
“The most fundamental reason there's no evidence for it is that I've been doing this for 20 years and I haven't even caught as much of a sniffle while doing it.”
Host
Guests
Arwin Edwards
person
Jen Bromley
person
Asian Elephant
other
Colossal Laboratories and Biosciences
organization
Ben Lam
person
Siberian Permafrost
other
University of Aberystwyth
organization
Narrow-leaved Campion
other
Yuka
other
Svalbard Global Seed Vault
organization
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