De-Extinction: A Scientist’s Perspective from Inside a Cloning Lab

About this episode

Chris discusses the complexities and challenges of de-extinction and cloning based on his experiences in a cloning lab.

Chris draws on his PhD-era experience at Texas A&M—including meeting Dewey, the world’s first cloned deer—to unpack de-extinction and why cloning is far harder and less efficient than headlines suggest. He revisits Dolly’s breakthrough, explains somatic cell nuclear transfer, and highlights low success rates and frequent abnormalities. Chris explores the only true de-extinction attempt, the Pyrenean ibex, which survived only minutes, and explains why mammoths and “dire wolves” cannot be truly cloned due to fragmented DNA, with current efforts relying instead on genetic engineering. Chris also outlines major challenges around elephant egg sourcing, embryo transfer, and gestation, questions claims that mammoths could meaningfully impact climate change, and argues conservation resources are better directed toward protecting existing species, while acknowledging potential scientific benefits from the research. Timeline 00:00 Podcast Intro and De-Extinction 00:38 Meeting Dewey the Clone 03:31 Cloning Hype vs Reality 05:06 Elephant Repro Research Shift 07:02 Dolly and Cell Reset 10:22 How Cloning Works 15:46 Lab Data on Efficiency 20:50 De-Extinction Case Study Ibex 22:32 Why…

People in this episode

Host: Chris

Topics covered

• de-extinction
• cloning
• conservation
• genetic engineering
• animal welfare
• scientific research

Keywords

• de-extinction
• cloning
• somatic cell nuclear transfer
• animal conservation
• genetic engineering
• elephant reproduction
• mammoth cloning

Mentioned in this episode

Organizations: Texas A&M

Books & works: Dolly

Places: Pyrenean ibex, mammoths, elephants, dire wolves

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