#denisova — Public Fediverse posts

Così come le popolazioni europee hanno ereditato parte del DNA dai #Neanderthal, quelle oceaniche e del Sud-est asiatico hanno ricevuto mutazioni dei #Denisova. 🪾

Ora sappiamo che almeno una di queste mutazioni risale a #HomoErectus: lo hanno scoperto scienziati cinesi che hanno estratto e analizzato proteine da denti di H. erectus vissuti 400mila anni fa. 🦷

https://www.nature.com/articles/s41586-026-10478-8

Using a minimally invasive technique, Chinese scientists have extracted proteins from 400,000-year-old #HomoErectus teeth. 🦷

The analysis identified two mutations in an enamel protein: one entirely novel, and another previously known only from Denisovans. The findings suggest a deep genetic link connecting present-day populations in Southeast Asia and Oceania to ancient Homo erectus through the #Denisova lineage. 🪾

Enamel proteins from six Homo erectus specimens across China | Nature
https://www.nature.com/articles/s41586-026-10478-8

Using a minimally invasive technique, Chinese scientists have extracted proteins from 400,000-year-old #HomoErectus teeth. 🦷

The analysis identified two mutations in an enamel protein: one entirely novel, and another previously known only from Denisovans. The findings suggest a deep genetic link connecting present-day populations in Southeast Asia and Oceania to ancient Homo erectus through the #Denisova lineage. 🪾

Enamel proteins from six Homo erectus specimens across China | Nature
https://www.nature.com/articles/s41586-026-10478-8

Eta hemen albistea euskaraz:
https://zientzia.eus/artikuluak/ihomo-erectusi-espeziea-eta-denisovarrak-hibridatu-zirela-frogatu-dute/
#erectus #denisova #sapiens #eboluzioa

@404mediaco

Facts (I recommend you to check all these interesting facts in scientific revues, or in articles explicitly related to a scientific revue one):

0- The ~3,000 Neandertal small tribes (20-35 individuals) were scattered Westward on the Euro-Asian continent, up to the East of the Caspian sea (see https://en.wikipedia.org/wiki/Neanderthal), and his "cousin" of the time, Denisovian, were scattered the same way & latitudes Eastward, up to China & Japan (see https://en.wikipedia.org/wiki/Denisovan) while Sapiens populations came by waves from South Africa, Sub-Saharian Africa (see https://en.wikipedia.org/wiki/Prehistory).

1- X Neandertal chromosome is "full" of Sapiens genes
2- X Sapiens chromosome is "empty" of Neandertalian genes
(see https://www.nature.com/articles/s42003-025-08682-9 ; https://pmc.ncbi.nlm.nih.gov/articles/PMC9741939/ ; etc.)

3- Neandertal Y chromosome has been replaced by the Sapiens Y one something like 200-350 kilo-years (ky) ago. (see https://pmc.ncbi.nlm.nih.gov/articles/PMC4833433/ ; https://pubmed.ncbi.nlm.nih.gov/27058445/ ; etc.)

4- Nearly all other chromosome wear genus from Neanderthalians and.or Denisovans today.There have been 2 major genes flows (introgressions) between the two Neandertal & Sapiens species:
* S -> N, 200-350 ky ago,
* N -> S 100-50 ky ago.
(see https://www.cell.com/current-biology/fulltext/S0960-9822(23)01315-5)

5- Neandertal is considered as extinct since 35-40 ky ago.
(see https://www.nature.com/articles/s41598-025-22376-6 ; https://www.nature.com/articles/s41598-024-57490-4 ; https://pmc.ncbi.nlm.nih.gov/articles/PMC6541251/; etc.)

6- There has been a pacific mixed civilization with N,S, and NS hybrids at least from 130 to 80 ky far from today, aka a stable & peacefull mixed civilization lasting 50 ky, which is 17 times the extent of the Pharaos's civilization, 17 times !
(source: https://www.nature.com/articles/s41562-025-02110-y ; https://pubmed.ncbi.nlm.nih.gov/40069367/ ; etc.)

7- The oldest known true & long war was among sapiens populations only, near by 13,400 -13,700 years ago, aka "few millenia" before the Neolithic era, the agriculture discovery. It may have been induced by the climate change of this time which triggered several battles during about a century, until the change calms down (see https://www.sciencenews.org/article/hunter-gatherers-warfare-stone-age-jebel-sahaba ; https://www.nature.com/articles/s41598-021-89386-y ; etc.), This happened nearly 30 Ky after the last Neandertal died, and lasted after several generations.

With all that in mind, it seems clear that Sapiens migrations in Eurasia slowly outnumbered Neanderthals & Denisovans, and that Sapiens did not kill them on purpose: there were good fellows, friends, brothers, they often mated and lived together, may be because they had more experience + adaptation to their climate than Sapiens, us, the new incommer.

Then, the most probable hypothesis for the extinction of our cousins are:

1- Ethological bias: Neandertalian men preferred to mate with Sapiens women, or the reverse.
2- Natural selection: Neandertalian genus on the X Sapiens chromosome were not viable, either because they had letal flaws, or spaying ones.
3- Gradual absorption: Neandertalians went diluted in Sapiens populations, more numerous, then made hybrids who were less efficient to reproduce than both genuine species (like often with hybrids).
4- Social structure difference: Neandertal males were more prone to seek a woman far from their native group (to avoid consanguinity: allopatry) when Sapiens women were incorporated in Neandertal groups where their X was stronger than the Neandertal one, giving more viable births. The result being a lot of hybrids less fertile, and less pure Neandertalians couples.

None of these hypothesis is exclusive. The combination of (4) + (3) seems today to be the most plausible, and not (1): Sapiens killed Neandertal by love, because Neandertal was less efficient to reproduce than Sapiens, and that's all.

Strong "edge effect": all H. sapiens are hybrids of H. neanderthalensis, and the most hybridized ones are the Indoeuropean, Arabs included & along with Aryans, this up to Japan & Oceania included too. The less Neandertal-contaminated Sapiens breeds are the South-African ones, the blacks, whose ancestors never saw any Neandertal.

=> The pure race Sapiens is Black, Mr Trump.

#science #Humans #archeology #neandertal #sapiens #denisova

Gilardet et al. extracted ancient DNA from bovine bones in the Denisova cave to characterize Pleistocene bovine diversity, identifying the Altai Mountains as a hotspot for bovine diversity.

🔗 https://doi.org/10.1093/gbe/evaf206

#genome #evolution #aDNA #denisova

Gilardet et al. extracted ancient DNA from bovine bones in the Denisova cave to characterize Pleistocene bovine diversity, identifying the Altai Mountains as a hotspot for bovine diversity.

🔗 https://doi.org/10.1093/gbe/evaf206

#genome #evolution #aDNA #denisova

Denisova : à visage découvert

#Archéologie #Paléoanthropologie #Denisova
Denisova : à visage découvert

#Denisova: Die sensationelle #Entdeckung einer neuen #Menschenart und die Folgen

https://www.l-iz.de/bildung/buecher/2025/08/denisova-sensationelle-entdeckung-neue-menschenart-folgen-632288
#Rezensionen #Bücher #Anthropologie

#Denisova: Die sensationelle #Entdeckung einer neuen #Menschenart und die Folgen

https://www.l-iz.de/bildung/buecher/2025/08/denisova-sensationelle-entdeckung-neue-menschenart-folgen-632288
#Rezensionen #Bücher #Anthropologie

Neue Forschungsergebnisse ermöglichen es erstmals, die geheimnisvollen und lange unbekannten #Denisova-Menschen darzustellen. Sie sind mit uns #Menschen verwandt und verschwanden vor ungefähr 20.000 Jahren. Mehr dazu von Henning Engeln. https://www.riffreporter.de/de/wissen/denisova-mensch-harbin-schaedel-anatomie-dna-analyse-palaeoanthropologie

Neue Forschungsergebnisse ermöglichen es erstmals, die geheimnisvollen und lange unbekannten #Denisova-Menschen darzustellen. Sie sind mit uns #Menschen verwandt und verschwanden vor ungefähr 20.000 Jahren. Mehr dazu von Henning Engeln. https://www.riffreporter.de/de/wissen/denisova-mensch-harbin-schaedel-anatomie-dna-analyse-palaeoanthropologie

Les Dénisoviens, la lignée fantôme

« Série d’été « Homo avant Sapiens » 1/6 – Vieux d’environ 40 000 ans, les rares fossiles de nos ancêtres dénisoviens n’auraient jamais été identifiés sans les progrès de la paléogénétique. Leur attribution à une nouvelle espèce humaine témoigne aussi d’un changement de paradigme dans la recherche. »

https://lejournal.cnrs.fr/articles/les-denisoviens-la-lignee-fantome

#Denisova #cnrs #paleoanthropologie

Ich mag diese eingeschobene Notiz

#Neandertaler #Denisova #Denisovan #Denisovans #HomoSapiens #Evolution #Urgeschichte

Paläologische Breaking News: "Homo longi", ein vor Jahren in China entdeckter fossiler Schädel, war laut einer neuen Studie ein Denisovaner.

Damit hätten wir erstmals einen komplett erhaltenen Schädel dieser Abstammungslinie des Menschen.

Studie
https://www.science.org/doi/10.1126/science.adu9677
#HomoLongi #Denisova

Des restes d’Homme de Denisova identifiés à Taïwan

#Archéologie #Denisova
Des restes d’Homme de Denisova identifiés à Taïwan

#Archaeology A male #Denisova mandible from #Pleistocene #Taiwan. Article in #Science, english, https://www.science.org/doi/10.1126/science.ads3888 popular science article in #danish https://videnskab.dk/naturvidenskab/danske-fossiljaegere-finder-endnu-et-forhistorisk-denisova-menneske/

Steinzeitliches Erbgut von der Oberfläche eines 20.000 Jahre alten Schmuckstücks

CSI #Archaeology; simply: Wow! 🤯

An #MPI_EVA_Leipzig-led international research group has successfully isolated #DNA from a #Paleolithic deer tooth pendant (from #Denisova Cave, #Siberia) - of the woman who wore it 19,000-25,000 years ago.

https://www.mpg.de/20241058/0428-evan-traces-from-the-past-150495-x

CSI #Archaeology; simply: Wow! 🤯

An #MPI_EVA_Leipzig-led international research group has successfully isolated #DNA from a #Paleolithic deer tooth pendant (from #Denisova Cave, #Siberia) - of the woman who wore it 19,000-25,000 years ago.

https://www.mpg.de/20241058/0428-evan-traces-from-the-past-150495-x

Denisova Cave, Siberia, was home to at least four different groups of humans over the last 300,000 years. This reveals the complex and diverse history of our species and our relatives.

#Denisova #HumanOrigins #Paleoanthropology

https://www.iflscience.com/humans-but-not-quite-denisova-cave-shows-the-strange-backstory-of-us-68425

Rappel : Lyudmila #Denisova, médiatrice pour les droits de l'homme en #Ukraine, avoue avoir menti sur les viols d'enfants par les Russes

"J’essayais d’atteindre l’objectif de convaincre le monde de fournir des armes et de faire pression sur la #Russie."

https://lemediaen442.fr/lyudmila-denisova-mediatrice-pour-les-droits-de-lhomme-en-ukraine-avoue-avoir-menti-sur-les-viols-denfants-par-les-russes/

#Immunboost durch #Gene des #Denisova-Menschen 🧬
@Albert #Indigene in #Neuguinea haben bis zu fünf Prozent #DNA, die von dem ausgestorbenen Verwandten des #Homosapiens stammt (DLF, science,.org)
Eine Analyse in #PLOSGenetics
zeigt ihren modulierenden Einfluss auf das #Immunsystem (engl.)
#dasneueuniversum -BAND 120 JETZT IM BUCHHANDEL und unter
https://dasneueuniversum.com
https://www.science.org/content/article/mysterious-ancient-humans-may-have-given-people-papua-new-guinea-immune-advantage

Cari nazionalisti ucraini, se i dati di #Amnesty si possono smentire smentiteli. Per capire le cause di una dimissione chiedete a chi si è dimesso. Se chiedete a me per dimissioni altrui, io chiedo conto a voi dei funzionari "dimissionati" da Zelensky, per capire se ci sono 651 traditori o un autocrate che viola la Costituzione ucraina, come ha dichiarato la "dimissionata" commissaria per i diritti umani del parlamento ucraino, Lyudmila #Denisova

https://www.ombudsman.gov.ua/en/news_details/zayava-upovnovazhenogo-shchodo-nezakonnosti-zvilnennya

https://www.adnkronos.com/ucraina-le-purghe-di-zelensky-chi-sono-tutti-i-silurati_3o9F6P1HJNQpsWoI5H7QNX?refresh_ce

Il parlamento ucraino ha sfiduciato e rimosso oggi dal suo incarico la commissaria per i #dirittiumani, Lyudmila #Denisova, sostenendo che avrebbe concentrato il proprio lavoro su crimini di natura sessuali "che non possono essere confermati con prove, danneggiando l'#Ucraina e distraendo i media mondiali dai reali bisogni dell'Ucraina". I parlamentari hanno lamentato gli scarsi risultati della commissaria nella creazione di corridoi umanitari e nello scambio di prigionieri di guerra.
RAINEWS

"Ho appena saputo che, su istruzione dell'ufficio del presidente dell'#Ucraina, è iniziata la raccolta delle firme dei deputati per esprimere un voto di sfiducia e le mie dimissioni dall'incarico nella seduta della Verkhovna Rada domani 31 maggio". Lo ha detto la commissaria per i diritti umani del parlamento ucraino, Lyudmila #Denisova, in una conferenza stampa a Kiev. "Rimuovermi dal mio incarico di commissaria sarà una violazione della costituzione ucraina", ha dichiarato.