Assertion Contradicted AI assessment confidence: 95% certainty 4/5 debate potential 3/5

Lamm: Woolly mice are second most genetically modified organisms behind dire wolves

Ben Lamm · Race to Save Humanity: Inside $12B Colossal Biosciences & $3.8B Astromech · Aug 20, 2026 · at 9:01

Ben Lamm, CEO of Colossal Biosciences, presents second-generation gene-edited 'woolly mice' in the studio to show progress toward woolly mammoth de-extinction.

0:00 / 0:06exact quote · 6.4s

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“These are the second most genetically modified Multicellular organisms on the planet after our direwolves.”

quote is from the automated transcript, cleaned for reading: filler sounds and stutters are removed, nothing is rephrased. names can be misheard (the analysis reads context, assessments check outside sources). how →

The claim, plainly

Colossal Biosciences' woolly mice are the second most genetically modified multicellular organisms on Earth, behind Colossal's dire wolves.

a quote alone can be ambiguous, so this restates it with the references and context of the conversation around it resolved. AI-written; the tape below the player is the source.

Assessment

The claim asserts that Colossal Biosciences' woolly mice are the second-most genetically modified multicellular organisms on Earth, behind only Colossal's dire wolves. Peer-reviewed genomics literature directly disproves both rankings. Colossal's reported dire wolves (announced in April 2025) carry 20 targeted nucleotide edits across 14 genes, and its woolly mice (announced in March 2025) carry 7 to 8 targeted edits across 7 loci. By contrast, live multicellular organisms carrying far more multiplex edits had been established years earlier: in October 2023, Yue et al. published in Nature the creation of live Yucatan miniature swine carrying 69 simultaneous genomic edits (59 PERV knockouts, 3 glycan antigen knockouts, and 7 human transgene insertions) for xenotransplantation. Earlier, in 2017, Niu et al. published in Science live piglets produced with 62 PERV knockouts. Because multiple living multicellular organisms possess between 62 and 69 introduced edits, Colossal's dire wolves (20 edits) do not rank first, and Colossal's woolly mice (7-8 edits) do not rank second.

In October 2023, Yue et al. reported in Nature (doi:10.1038/s41586-023-06594-4) live donor pigs engineered by eGenesis carrying 69 simultaneous genomic edits (59 viral inactivations, 3 gene knockouts, and 7 human transgenes).
In September 2017, Niu et al. published in Science (357:1303-1307) live piglets engineered with 62 simultaneous PERV gene knockouts.
Colossal Biosciences' published specifications for its dire wolves (announced April 2025) document 20 edits across 14 genes, while its woolly mice (announced March 2025) document only 7 to 8 edits across 7 loci, far below established multicellular genomic modification benchmarks.

Checked against

[1] dlogos.xyz [2] biggo.com [3] biggo.com [4] youtube.com [5] colossal.com [6] wikipedia.org [7] facebook.com [8] youtube.com

"Colossal Biosciences" "woolly mice" "most genetically modified multicellular organisms" Colossal "Ben Lamm" "Sourcery" "Colossal Biosciences" "dire wolf" OR "dire wolves" "eGenesis" "69" edits OR modifications pig Nature "Niu et al" "Inactivation of porcine endogenous retrovirus" 2017 "multiplex genome editing" record number of edits "Nature" OR "Science"

assessed as of 2026-09-09

This assessment is an AI reading of a public statement, made against the cited references with the confidence shown. It can be wrong. The quote, the tape and the references are all on this page; if something is off, use report an error below. full disclaimer →

Mentioned

Colossal Biosciences direwolves woolly mice

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