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Jonas Holm Jæger

@jonasholmjaeger

PhD Fellow | biomolecular archaeology | UCPH | Currently obsessed with sheep husbandry | aDNA, palaeoproteomics, isotopes | πŸ‘πŸ§¬πŸ¦·πŸ¦΄ | if it’s old and/or dead I’m probably into it jonashjaeger.github.io

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Latest posts by Jonas Holm Jæger @jonasholmjaeger

Jobs - The University of York

🧬 NEW JOB: @york-bioarch.bsky.social is hiring a Postdoc in Ancient DNA

Work on the RoBMobS project to explore mobility and diversity in Roman Britain using genomic data.

πŸ’° Β£37k - Β£39k
⏳ 34 months
πŸ“ York, UK
πŸ“… Apply by 24 March 2026

jobs.york.ac.uk/vacancy/post...

07.03.2026 09:58 πŸ‘ 7 πŸ” 16 πŸ’¬ 0 πŸ“Œ 1
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Guess the color by name You are given a color name and have to guess how it looks like. The closer your guess is the more points you collect.

Colorle #981 408/500
🟩🟩🟩🟩🟩🟩🟩🟩⬜⬜ 86/100
🟩🟩🟩🟩🟩🟩🟩🟩🟩⬜ 93/100
🟩🟩🟩🟩🟩🟩⬜⬜⬜⬜ 64/100
🟩🟩🟩🟩🟩🟩🟩⬜⬜⬜ 78/100
🟩🟩🟩🟩🟩🟩🟩🟩⬜⬜ 87/100
colorguesser.com

10.03.2026 09:54 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A north arrow. This one is drawn as an actual arrow with fletchings and everything. The shaft is tapered down to the barbed point. At the tip is written "Nord" in nice cursive script.

A north arrow. This one is drawn as an actual arrow with fletchings and everything. The shaft is tapered down to the barbed point. At the tip is written "Nord" in nice cursive script.

#NorthArrow Frants Frederik Jonathan MΓΈller 1811.

Good dynamism. Like the detail on the fletching. 8/10

04.03.2026 09:14 πŸ‘ 17 πŸ” 4 πŸ’¬ 3 πŸ“Œ 3

🏺 🐺 πŸ• My pet theory is that wolves' musicality and ability to sing WITH PEOPLE is a key reason why we were mutually attracted - domestication through shared aesthetic sensibility, not merely economics of being good at hunting or guarding or pulling sleds...
(this is going to be in #Matriarcha πŸ“š)

09.03.2026 16:24 πŸ‘ 94 πŸ” 12 πŸ’¬ 6 πŸ“Œ 1

I'm singing with my dog on a near-daily basis.

09.03.2026 23:52 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

β€œAa, det fille, det falle i min Hovedskalle.” sagde Kyllingen. β€œLad os lΓΈbe!” sagde Hanen.

09.03.2026 12:09 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Also, I just learned right now that it's "pastime" and not "past-time".

08.03.2026 23:37 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

I've reached the point where my favourite pastime these days is an endless loop of listening to The Cure, getting bouts of crippling anxiety and then recalibrating myself with a glass of Laphroaig #PhDlife

08.03.2026 23:37 πŸ‘ 9 πŸ” 1 πŸ’¬ 2 πŸ“Œ 0

Hvad skal jeg med vand? Er det ikke sΓ₯dan noget pΓΈblen drikker?

08.03.2026 23:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I det mindste har du ikke behøvet at trække et par kilometers grøft for at konstatere at der ikke er noget.

06.03.2026 14:27 πŸ‘ 4 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Det hele ligger i restjorden. Frem med soldet.

06.03.2026 14:26 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

And here I thought the hardest part of writing a research paper was doing the actual research and putting it on paper. - not all of the formalities required prior to submission...

04.03.2026 23:23 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Det er fandme svΓ¦rt at lave arkΓ¦ologi nΓ₯r der ingen anlΓ¦g er i grΓΈfterne.

04.03.2026 19:23 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1

I’m curious to see what such models might be able to do if applied to ancient DNA - especially for (ultra) low-coverage genomes.

04.03.2026 19:01 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Mama mia…

04.03.2026 18:40 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Never say never. Somewhere in the Siberian permafrost I guarantee you there is a fully preserved, fabulous Neanderthal gay dude. All you need then is just a swab from all of the… Right places.

03.03.2026 09:46 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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FΓΈrste land i EU: Danmark har elimineret mor-til-barn-smitte med hiv og syfilis WHO har certificeret Danmark for officielt at have stoppet smitte med hiv og syfilis fra mor til barn. Anerkendelsen er resultatet af en mangeårig, målrettet indsats i det danske sundhedsv...

Selvom verden er pΓ₯ vej lige ned i lokummet og der tilmed er udskrevet valg sΓ₯ er det altid noget at der trods alt er lidt gode nyheder.

27.02.2026 20:16 πŸ‘ 7 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This is not concerning at all.

27.02.2026 19:12 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

β€œAnd on the 8th day the Lord took a ginormous hit on his bong and said: let there be deer!”

26.02.2026 22:18 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Eucladoceros:

26.02.2026 22:06 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Deer used to be wild.

26.02.2026 19:55 πŸ‘ 8 πŸ” 3 πŸ’¬ 3 πŸ“Œ 0

Or β€œarrow” heads. Though experiments have shown that modern replicas can indeed be shot effectively from a bow they might as well have been used with an atlatl or similar technology.

26.02.2026 13:29 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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(PDF) Late Palaeolithic NΓΈrre Lyngby - a northern outpost close to the West coast of Europe PDF | Freshwater deposits exposed in a coastal cliff at NΓΈrre Lyngby, NW Denmark, have yielded some of the northernmost traces of human presence in... | Find, read and cite all the research you need o...

Fischer et al. 2013: Late Palaeolithic NΓΈrre Lyngby - a northern outpost close to the West coast of Europe, QuartΓ€r (60), 137-162.

26.02.2026 13:25 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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While the Bromme people are pretty ephemeral in the archaeological record they did leave behind huge arrow heads along with a few other tools like awls and scrapers.

πŸ“· Fischer et al. 2013

26.02.2026 13:22 πŸ‘ 6 πŸ” 1 πŸ’¬ 2 πŸ“Œ 0
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Bromme culture - Wikipedia

These people belong to a group today known as the Bromme Culture.

en.wikipedia.org/wiki/Bromme_...

26.02.2026 13:19 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 1

If we’ll ever get the opportunity, these samples could hold traces of DNA from plants, trees and animals living during a period where semi-sedentary hunter-gatherers migrated into Southern Scandinavia.

26.02.2026 13:19 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

If we’re right, this peat was formed during the AllerΓΈd, a 1200 year interstadial warm period from 11.800-10.600 BC, just before the end of the last ice age.

26.02.2026 13:19 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Wanna see something really cool?

Ancient pathogens in Medieval parchment πŸ¦ πŸ§¬πŸ“

26.02.2026 12:22 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Field sampling (potentially) AllerΓΈd peat for #eDNA #sedaDNA

26.02.2026 10:21 πŸ‘ 16 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0

That’s genius. I wonder what they’d call such a scheme?

26.02.2026 10:20 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0