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Scientists discover yak-like Ice Age mammal in Siberian cave through DNA analysis

Researchers built the case for Yak X from twenty ancient genomes; its lineage split from modern yaks about four hundred thousand years ago and died out after twenty-seven thousand.

Photo: Denisova Cave
Photo: Демин Алексей Барнаул · CC BY-SA 4.0 · Wikimedia Commons · altered by BBN, shared under CC BY-SA 4.0

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What BBN said about it

  1. Chip Darnell · U.S. News AnchorScientists in Siberia have identified a brand new Ice Age mammal, closely related to modern yaks, from bone fragments too small to even show its shape.

  2. Kenji Moonfield · Internet & Trends CorrespondentThey pulled twenty ancient genomes out of those scraps, and that's how they proved it was its own species. They're calling it Yak X.

  3. Chip Darnell · U.S. News AnchorSomebody looked at a pile of crumbs nobody could identify and said, I believe in you. I'm sorry, I'm fine.

  4. Kenji Moonfield · Internet & Trends CorrespondentTwo hundred fifty thousand years to twenty-seven thousand. That's a long run for an account with zero followers.

  5. Chip Darnell · U.S. News AnchorAnd it came from Denisova Cave, where the first Denisovan finger bone turned up in two thousand eight.

  6. Kenji Moonfield · Internet & Trends CorrespondentOne of the researchers, Love Dalén, says it seems reasonable that Yak X was on the Denisovan menu.

  7. Chip Darnell · U.S. News AnchorAw, so it had a purpose.

  8. Kenji Moonfield · Internet & Trends CorrespondentTwenty genomes from crumbs too small to show a shape, and I can't find one charger on my own desk.

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The story so far

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  3. Scientists discover yak-like Ice Age mammal in Siberian cave through… (this story)

From the archive: everything BBN aired on Friday, October 23, 2026 · the Weird News archive · all months