Ramiro Barberena
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ramiro-arqueo.bsky.social
Ramiro Barberena
@ramiro-arqueo.bsky.social
180 followers 180 following 16 posts
🗿 Andean archaeologist
⚛️ Isotopes fan
🧑‍🔬️ Research CONICET, UNCUYO, UCTemuco
🌎 NatGeo explorer
👦🏼 Domi’s dad
Posts Replies Media Videos
ramiro-arqueo.bsky.social
@nationalgeographic.bsky.social 1st Explorer Festival in Africa. Landscapes, conservation, languages, communities. It blew my mind
November 8, 2025 at 11:10 PM
Reposted by Ramiro Barberena
iosiflazaridis.bsky.social
www.nature.com/articles/s41...

New paper led by Javier Maravall on a time transect from ancient Argentina.
Eight millennia of continuity of a previously unknown lineage in Argentina - Nature
A previously unsampled deep lineage in central Argentina was discovered that had distinctive genetic drift by 8,500 bp and persisted as the main Native American ancestry component in the reg...
www.nature.com
November 5, 2025 at 6:07 PM
Reposted by Ramiro Barberena
andrewcurry.com
Original paper: bsky.app/profile/iosi...
November 5, 2025 at 6:53 PM
Reposted by Ramiro Barberena
andrewcurry.com
Ancient DNA studies usually link changes in lifestyle and language in the past to population movements. But not always! A new study in @nature.com reveals a South American ancestry that stayed steady for 8,500 years, despite major cultural and linguistic shifts. @science.org 🏺 🧬
Mystery group lived in central Argentina for millennia, ancient DNA reveals
New study fills major gap in genetic map of ancient human migrations
www.science.org
November 5, 2025 at 4:34 PM
Reposted by Ramiro Barberena
andrewcurry.com
DNA from 146,00-year-old tooth plaque helped Chinese researchers identify the "Dragon Man" as a Denisovan, an archaic species of human: www.science.org/content/arti... @science.org
‘Dragon Man’ skull belongs to mysterious human relative
At long last, scientists have a nearly complete cranium from hominins known as Denisovans
www.science.org
June 18, 2025 at 5:15 PM
Reposted by Ramiro Barberena
antiquity.ac.uk
📰 Ancient DNA traces how dogs spread across the Americas alongside early farming societies

#ArchaeologyNews via ‪@ox.ac.uk‬ @unioxarchaeology.bsky.social‬

www.ox.ac.uk/news/2025-06...
Ancient DNA reveals new clues about the incredible journey of dogs in
A major new study led by Dr Aurélie Manin from the School of Archaeology at the University of Oxford has traced the incredible journey of humankind’s best friend across the Americas, showing how dogs
www.ox.ac.uk
June 19, 2025 at 4:32 PM
Reposted by Ramiro Barberena
nature.com
A US judge has ordered hundreds of terminated research projects at the US National Institutes of Health to be reinstated, calling the processes that led to their cancellation “bereft of reasoning”.

https://go.nature.com/4kOmXDy
Judge rules against NIH grant cuts — and calls them discriminatory
The decision means that the US biomedical agency has to restore funding to hundreds of research projects, but the government will likely appeal.
go.nature.com
June 16, 2025 at 11:24 PM
Reposted by Ramiro Barberena
solangerigaud.bsky.social
Just out! we challenge the long-standing tradition of defining Upper Paleolithic cultures primarily through stone tool artefacts. Instead, we turn to personal ornaments to explore cultural identities during the past shorturl.at/8mxKe @univbordeaux.bsky.social @cnrsecologie.bsky.social
Multivariate analyses of Aurignacian and Gravettian personal ornaments support cultural continuity in the Early Upper Palaeolithic
Traditionally, lithic artefacts have served as the principal proxy for the definition of archaeological cultures in the Upper Paleolithic. However, the culture-historical framework in use, constructed...
shorturl.at
June 5, 2025 at 3:53 PM
Reposted by Ramiro Barberena
sebduchene.bsky.social
I'm super proud to share this piece of work, led by @nrascovan.bsky.social, @avanzich.bsky.social and @marialopopolo.bsky.social. See details in Maria's post here:
May 30, 2025 at 7:26 AM
Reposted by Ramiro Barberena
Ancient DNA reveals a two-clanned matrilineal community in Neolithic China www.nature.com/articles/s41...
Ancient DNA reveals a two-clanned matrilineal community in Neolithic China - Nature
Analysis of ancient DNA, stable isotope data and archaeological evidence from the Fujia archaeological site in eastern China suggests it was populated by a matrilineal Neolithic community between 2750...
www.nature.com
June 5, 2025 at 2:23 PM
Reposted by Ramiro Barberena
monicamedhist.bsky.social
Big news in #GlobalHealthHistory today. A species of bacterium that causes leprosy, discovered in 2008 in modern patients, has been proven to have been present in the Americas well before European arrival. More details in 🧵 below: www.science.org/content/arti... #GlobalMiddleAges #histmed #aDNA 🧪
Leprosy was an American scourge long before Europeans arrived
Scientists find DNA from an enigmatic bacterium in 1000-year-old skeletons
www.science.org
May 29, 2025 at 6:38 PM
ramiro-arqueo.bsky.social
Wonderful research by @marialopopolo.bsky.social @nrascovan.bsky.social and a fantastic team. Congrats!!!
May 29, 2025 at 11:20 PM
Reposted by Ramiro Barberena
science.org
A new Science study shows that the mycobacterium M. lepromatosis infected humans in the Americas before European contact.

The findings reshape current views of leprosy in the Americas and provide insights into the long-term interactions between humans and infectious diseases. scim.ag/3HuEjGB
Fig. 1. Contemporary and ancient sample sites in the Americas and synteny plot between genomes of leprosy-causing bacteria. (A) Pie charts indicate the site location or countries from where samples were collected for screening. Charts are color-coded according to the presence or absence of M. lepromatosis and if they are from present-day biopsies or ancient archaeological origin. (B) Illustration of mauve progressive alignments showing possible genome rearrangements and synteny blocks between four leprosy-causing bacterial genomes using pyGenomeViz (35). Species (and strains in parentheses) are indicated in bold on the left. Genome sizes are shown in megabases (Mb) below each genome. The Viridis color palette (Matplotlib) is used to represent genome position along the M. lepromatosis reference genome (NHDP-LPM-385), with a continuous gradient from start to end. Genomes that are fully syntenic with the reference, such as other M. lepromatosis strains, display an almost identical color order, reflecting preserved genomic structure. In contrast, the M. leprae TN genome shows a disrupted color sequence due to differences in genome organization relative to the coordinates of the M. lepromatosis reference. Gray lines connect collinear regions, while orange highlights indicate inverted blocks (on the minus strand) relative to the NHDP-LPM-385 reference.
May 29, 2025 at 7:33 PM
Reposted by Ramiro Barberena
andrewcurry.com
Between 1637 and 1697, people who died at Milan's biggest hospital were dropped into underground vaults. Now their remains (including nearly 3 million bones & preserved brains) are helping archaeologists reconstruct the lives, diet and drug habits of people historians often overlook. @science.org
Thousands buried in 17th century Italian crypt reveal lives of working poor
Remains recovered from beneath a Milan hospital shed light on health, diet, and drug habits during the 1600s
www.science.org
May 2, 2025 at 2:01 PM
Reposted by Ramiro Barberena
antiquity.ac.uk
This is the Löwenmensch (lion person), a ~40,000-year-old mammoth ivory figurine from the cave of Hohlenstein-Stadel. The oldest-known depiction of a being that does not exist, it provides a rare glimpse into the supernatural during the Ice Age. 🏺

📷 Dagmer Hollmann / CC BY-SA 4.0
Ivory sculpture depicting an upright, humanoid figure with the head of a lion.
March 28, 2025 at 3:01 PM
Reposted by Ramiro Barberena
lollardfish.bsky.social
Happy #WorldDownSyndromeDay. It falls on 3/21, because people with Down syndrome have three copies of the twenty-first chromosome. This is the best Down syndrome PSA ever made and I want you to watch and share it. #WDSD2025
LIBERTAD - Downeate - Mismas Realidades
YouTube video by Downeate
www.youtube.com
March 21, 2025 at 12:51 PM
Reposted by Ramiro Barberena
julialt.bsky.social
Really important, and useful thread. One thing it shows - scientific community needs to organise
chrischirp.bsky.social Prof Christina Pagel @chrischirp.bsky.social · Feb 17
🧵Who is opposing the Trump administration?

I analysed 76 actions of the administration since inauguration and then searched for *meaningful* opposition to each.

I grouped the types of opposition and considered what we can learn from both them & actions where opposition has been lacking 1/24
chart showing groups of opposition to Trump. Broad groups for lawsuits are Blue states, labour organisations, civil rights organisations, NGOs. Then there is a separate group for international rsponse and another one for non lawsuit response. A table of all actions is available here with any oppoistion highlighted: https://docs.google.com/spreadsheets/d/1LZN7QnbSyFfUZJG8Sn1MWpK0VnfBtb0OSyZ1jxP3xBk/edit?usp=sharing (worksheet "Actions with links")
February 18, 2025 at 7:36 AM
Reposted by Ramiro Barberena
shoc-vub.bsky.social
Ypres was one of 13th-century Europe’s economic powerhouses. Bart Lambert’s MOTC project drew on isotopic analyses of human skeletons to reconstruct mobility patterns of its inhabitants. Their new paper discusses evidence of regional, female and children’s mobility.
link.springer.com/article/10.1...
Mobility in a medieval industrial city: an isotopic study of skeletal evidence from 13th -14th century Ypres (Belgium) - Archaeological and Anthropological Sciences
Mobility to and from cities represents an essential aspect of urban development in Flanders (Belgium) during the second half of the Middle Ages (AD 1000 – AD 1500). The city of Ypres was situated in o...
link.springer.com
February 4, 2025 at 2:42 PM
Reposted by Ramiro Barberena
lorenabecval.bsky.social
First post here to promote a wonderful new paper, which I am happy to be a part of.

This work was led by an amazing MPI researcher, Michael Ziegler, who is a joy to work with! Thanks to him and the team for the collaboration.

Read up for isotopes in 🇨🇴👇

www.sciencedirect.com/science/arti...
Human dietary diversity in the Colombian Andes at the terminal Pleistocene-late Holocene sites Tequendama and Aguazuque
Understandings of spatiotemporal dispersals of Homo sapiens onto the neotropical South American landscape and their environmental interactions during …
www.sciencedirect.com
January 27, 2025 at 1:28 PM
Reposted by Ramiro Barberena
bwallower.bsky.social
Explosive volcanic eruption may have led to growth of ancient city in Bolivia www.theartnewspaper.com/2025/01/22/a...
Explosive volcanic eruption may have led to growth of ancient city in Bolivia
New study suggests rise of ancient city Tiwanaku coincided with major volcanic event in Lake Titicaca Basin's vicinity
www.theartnewspaper.com
January 23, 2025 at 1:54 PM
Reposted by Ramiro Barberena
rajoyce.bsky.social
Sad news from SHA: Mark Leone, Distinguished Professor in the Department of Anthropology at the University of Maryland, has passed away. A founding voice in US Marxist archaeology, director of the long-running Annapolis archaeology project.
December 14, 2024 at 6:36 PM
Reposted by Ramiro Barberena
nannonstevens.bsky.social
Final call !! Apply for this funded PhD at University College London @UCLarchaeology.bsky.social on Establishing limits of Neanderthal presence in Britain.

Deadline 20th Jan 5pm Uk time

www.trees-dla.ac.uk/projects/est...
January 13, 2025 at 11:17 AM
Reposted by Ramiro Barberena
robertbohan.bsky.social
Thread: John Singer Sargent (1856-1925) was an American society portraitist, impressionist & bravura painter. He was the most successful portraitist of his time. Nowadays his astounding brush skills, subject matter & style have granted him renewed fame. He was born OTD.
January 12, 2025 at 6:45 PM
Reposted by Ramiro Barberena
A sedimentary ancient DNA perspective on human and carnivore persistence through the Late Pleistocene in El Mirón Cave, Spain
www.nature.com/articles/s41...
A sedimentary ancient DNA perspective on human and carnivore persistence through the Late Pleistocene in El Mirón Cave, Spain - Nature Communications
Archaeological contexts in caves provide an opportunity to examine human and animal dynamics through climatic events. Here, the authors present sedaDNA of 28 taxa from El Mirón Cave, Spain, including ...
www.nature.com
January 8, 2025 at 11:39 AM
Reposted by Ramiro Barberena
fionacoward.bsky.social
Postdoc stable isotope analysis
www.jobs.ac.uk/job/DLH400/p...
Postdoctoral Research Associate (Stable Isotope Analysis) at University of York
Discover Postdoctoral Research Associate (Stable Isotope Analysis) jobs and more in higher education on jobs.ac.uk. Apply for further details on the top job board.
www.jobs.ac.uk
January 7, 2025 at 8:28 AM