Jonas Holm Jæger
@jonasholmjaeger.bsky.social
PhD Fellow | biomolecular archaeology | palaeoovinology | UCPH | Late Iron Age sheep husbandry🐑🧬🦷🦴 | if it’s old and/or dead I’m probably into it
jonashjaeger.github.io
jonashjaeger.github.io
Guys, they gave sheep achondroplasia.
January 5, 2026 at 11:46 AM
Guys, they gave sheep achondroplasia.
Tilbage på arbejde efter nytår og vi fortsætter hvor vi slap: flotering og masser af trækul.
January 5, 2026 at 9:56 AM
Tilbage på arbejde efter nytår og vi fortsætter hvor vi slap: flotering og masser af trækul.
Reposted by Jonas Holm Jæger
I've slowly been reformatting notes from my population and conservation genetics course at Montana State University into a web book—a rough draft is now live here: elinck.org/popgen_conge...
December 22, 2025 at 9:32 PM
I've slowly been reformatting notes from my population and conservation genetics course at Montana State University into a web book—a rough draft is now live here: elinck.org/popgen_conge...
Every once in a while, you gotta ask yourself: “Are you a piss tank half full or piss tank half empty kind of person?”
The piss tank on the ISS is now 50% full.
January 4, 2026 at 7:09 PM
Every once in a while, you gotta ask yourself: “Are you a piss tank half full or piss tank half empty kind of person?”
This. This. This.
Ancient DNA is a finite and precious resource and every single time we sample a bone, tooth or petrous we loose sample material and damage unique, cultural heritage objects. There are so many excellent published palaeogenomes out there that can still give us new data.
Ancient DNA is a finite and precious resource and every single time we sample a bone, tooth or petrous we loose sample material and damage unique, cultural heritage objects. There are so many excellent published palaeogenomes out there that can still give us new data.
I hope that other researchers will now go back through their ancient genomes and find more carriers of integrated HHV6 viruses, as this is the first peek at an exciting global story.
January 4, 2026 at 2:22 PM
This. This. This.
Ancient DNA is a finite and precious resource and every single time we sample a bone, tooth or petrous we loose sample material and damage unique, cultural heritage objects. There are so many excellent published palaeogenomes out there that can still give us new data.
Ancient DNA is a finite and precious resource and every single time we sample a bone, tooth or petrous we loose sample material and damage unique, cultural heritage objects. There are so many excellent published palaeogenomes out there that can still give us new data.
Jeg havde faktisk tænkt mig at lave en føljeton om TV2s “Danefæ” men min selvudslettelsesdrift er ikke voldsom nok. Det er Lars’ til gengæld.
Vi fortsætter med lidt #ArkæologiskSelvpineri i dag. Vi skal se lidt nærmere på afsnit 2 af "Danefæ", hvor både Esther og Michael egentlig burde været blevet fyret i første afsnit.
Lad os se hvad de finder på af nye ting i afsnit 2!
Lad os se hvad de finder på af nye ting i afsnit 2!
January 3, 2026 at 8:18 PM
Jeg havde faktisk tænkt mig at lave en føljeton om TV2s “Danefæ” men min selvudslettelsesdrift er ikke voldsom nok. Det er Lars’ til gengæld.
World’s largest cog.
World’s largest late medieval cog discovered sunken in the Øresund Strait
Archaeologists uncover the world’s largest late medieval cargo ship in the Øresund Strait, revealing new insights into 15th-century trade.
archaeologymag.com
January 3, 2026 at 3:33 PM
World’s largest cog.
Har amerikanerne kidnappet Venezuelas præsident? 1970’erne har ringet, de vil gerne have deres CIA-aktioner tilbage.
January 3, 2026 at 10:31 AM
Har amerikanerne kidnappet Venezuelas præsident? 1970’erne har ringet, de vil gerne have deres CIA-aktioner tilbage.
Reposted by Jonas Holm Jæger
Two unusual things on the mountain this morning: a skein of geese flying south (late) and a whole flock of ewes have lambed (early).
January 3, 2026 at 9:27 AM
Two unusual things on the mountain this morning: a skein of geese flying south (late) and a whole flock of ewes have lambed (early).
Honey! A new herpes-paper just dropped 😘
Tracing 2500 years of human betaherpesvirus 6A and 6B diversity through ancient DNA
First ancient HHV-6 genomes reveal 2500 years of phylogenetic continuity and provide insights into the endogenization of HHV-6A.
www.science.org
January 3, 2026 at 9:23 AM
Honey! A new herpes-paper just dropped 😘
Hvis det kan få mig til at dissociere fra verdens elendighed at scrolle brainrot memes på Insta, så skal jeg bede om mere skærmtid i 2026, tak.
'Danmark Skifter' vil samle danskere, der vil ændre deres digitale vaner og gøre op med techgiganternes magt.
Er dit nytårsforsæt mindre skærmtid? Så vil ny kampagne hjælpe dig på vej
'Danmark Skifter' vil samle danskere, der vil ændre deres digitale vaner og gøre op med techgiganternes magt.
www.dr.dk
January 3, 2026 at 8:42 AM
Hvis det kan få mig til at dissociere fra verdens elendighed at scrolle brainrot memes på Insta, så skal jeg bede om mere skærmtid i 2026, tak.
Hvaeh, der snevejr dér? Det blev vist lidt en fuser, hva? Hilsen Odsherred.
January 3, 2026 at 8:27 AM
Hvaeh, der snevejr dér? Det blev vist lidt en fuser, hva? Hilsen Odsherred.
Sheep are starting to get a bad rep.
Bronze Age Yersinia pestis genome from sheep sheds light on hosts and evolution of a prehistoric plague lineage
A Yersinia pestis genome from a Bronze Age domesticated sheep provides insight into
the host range, evolution, and possible transmission scenarios of an ancient lineage
of the plague-causing bacteria,...
www.cell.com
January 2, 2026 at 4:03 PM
Sheep are starting to get a bad rep.
“Jeg hedder Katrine, og jeg er én milliard år gammel.”
December 19, 2025 at 9:05 PM
“Jeg hedder Katrine, og jeg er én milliard år gammel.”
Det står skidt til for arkæologien i Åmosen som engang havde nogle af de bedste betingelser for bevaring af organiske materialer i Nordeuropa.
Nyt studie: Tørke smadrede fortidsminder på to måneder
Forårets udtørring i en mose fik flere tusinde år gamle træstumper til at blive ødelagt på få måneder.
www.tv2east.dk
December 2, 2025 at 7:21 AM
Det står skidt til for arkæologien i Åmosen som engang havde nogle af de bedste betingelser for bevaring af organiske materialer i Nordeuropa.
Jeg havde forventet et glas Chateau Margaux når det nu er Morten som byder. Skuffende.
November 5, 2025 at 6:36 PM
Jeg havde forventet et glas Chateau Margaux når det nu er Morten som byder. Skuffende.
Joseph is my dissemination spirit animal.
‘I try to make them feel as ignorant as possible’: German museum’s ‘grumpy guide’ is surprise hit
‘I try to make them feel as ignorant as possible’: German museum’s ‘grumpy guide’ is surprise hit
Performance artist’s aggressive art historian shouts at visitors and insults curators – and his tours are sold out
www.theguardian.com
November 1, 2025 at 2:48 PM
Joseph is my dissemination spirit animal.
Ea Nasir just can’t seem to catch a break now, can he?
Watch out for Ea Nasir this Halloween!
October 31, 2025 at 2:33 PM
Ea Nasir just can’t seem to catch a break now, can he?
Reposted by Jonas Holm Jæger
I'm hiring!⭐ As part of the DFF Sapere Aude-funded project MiddleEarth, I am looking for 1 postdoctoral researcher and 1 research assistant.
October 27, 2025 at 9:54 AM
I'm hiring!⭐ As part of the DFF Sapere Aude-funded project MiddleEarth, I am looking for 1 postdoctoral researcher and 1 research assistant.
Jeg kunne også sagtens suge noget Janssons fristelse.
Blev SJUKT sugen på Janssons frestelse nu 🤤
One of Sweden’s most delicious exports, Jansson’s temptation, otherwise known as Janssons frestelse, is a creamy potato casserole with melty onions and umami-packed tinned sprats.
October 26, 2025 at 4:12 PM
Jeg kunne også sagtens suge noget Janssons fristelse.
“Gifts that bring frustration” is more like it.
Sincerely, the archaeologists.
Sincerely, the archaeologists.
October 26, 2025 at 10:46 AM
“Gifts that bring frustration” is more like it.
Sincerely, the archaeologists.
Sincerely, the archaeologists.
How insanely cool is this? I’m literally still in the maternity ward waiting to go home with my newborn son, so the timing is absolutely 👌
First successful detection of oestrogen, progesterone and testosterone in multiple human hard tissues, and their use as potential biomarkers of pregnancy
First successful detection of oestrogen, progesterone and testosterone in multiple human hard tissues, and their use as potential biomarkers of pregnancy
The sex steroid hormones oestrogen, progesterone, and testosterone have never been detected in modern or archaeological human skeletal tissues using e…
www.sciencedirect.com
October 24, 2025 at 7:16 AM
How insanely cool is this? I’m literally still in the maternity ward waiting to go home with my newborn son, so the timing is absolutely 👌
Yesterday, at 04:55am my wife gave birth to our second son. At 4230g and 55cm, Walther, is the exact same size as his big brother, Eske, when he was born almost four years ago.
That’s all, folks.
That’s all, folks.
October 24, 2025 at 6:43 AM
Yesterday, at 04:55am my wife gave birth to our second son. At 4230g and 55cm, Walther, is the exact same size as his big brother, Eske, when he was born almost four years ago.
That’s all, folks.
That’s all, folks.