Wourschaity retweeted
Jebel Irhoud Composite Skull Reconstruction Compared with Cro-Magnon. Jebel Irhoud is likely an early Sapiens from our Lineage A Ancestry which makes up 80% of Homo Sapiens genetic makeup. Fossil Age, Location and Tool technology all but confirms it. @Zeke_Darwin
Wourschaity retweeted
Slop nonsense
Mota, a 4.5kya Ethiopian shows no West Eurasian back flow (nor, do Dinka have any significant amount either fwiw) and is even closer to Eurasians than Dinka are. East Africans and Eurasians are closer to each other than to West Africans, completely in line with OOA
I find it crazy that we haven't heard more of this since!
repository.cam.ac.uk/items/3…
No raw reads published, nothing actually.
1
111
Wourschaity retweeted
Its interesting how much more effective f3 based MDS plots and and outgroup f3 heatmaps (the latter being my personal favorite) are at showing the ancestry of pre-Neolithic and especially pre-LGM populations than PCAs. 1/2
Early Gravettian genomic data from Western Europe reveal population movements before the LGM
science.org/doi/10.1126/scia…
Wourschaity retweeted
🚨 Ancient DNA Alert 🚨
Do you depend on BWA aln, and worry that the world’s HPC clusters are pivoting towards GPUs?
Fear no more!
We here present G-ALN, a GPU implementation that is >6 times faster and produces byte-identical outputs to BWA aln!
biorxiv.org/content/10.64898…
Extra damage restricted FrLF1, who already showed no nuclear contamination: ContamLD −0.004 ± 0.003, Tuscans as the reference panel.
FrCL1 was dropped: damage restriction left him under 100k SNPs on 2M and didn’t reliably lower his mtDNA contamination.
1
2
44
Wourschaity retweeted
Kalinowscy herbu Kalinowa należeli do Atlantycko-celtyckiej linii R1b
Aristocratic and nobel Y-DNA lineages from various ethnic groups from the Russian Nobility FTDNA project.
familytreedna.com/groups/rus…
Outgroup-f3 of "new shotgun-sequenced Late Upper Palaeolithic genomes from the south of France".
Ran on the 2M snp v66 AADR dataset with custom genotypes.
ENA:PRJEB97418
Wourschaity retweeted
A simplified phylogenetic tree schematic to visually represent the recent findings on the emergence of modern humans.
– It also shows ancient source components relevant for later groups (e.g. OOA-like, European or East Asian HGs, ANE, etc.), not modern populations...
🐒 How far north could prehistoric monkeys survive?
Around 315,000 years ago, a young macaque lived in what is now northern Germany. Its story survives through a single deciduous—or “milk”—tooth measuring just 7.47 mm.
Recovered from the Middle Pleistocene deposits of Schöningen, Germany, the specimen represents the northernmost known Middle Pleistocene macaque record from continental Europe. The animal lived in an open woodland dominated by birch and pine, under climatic conditions in which winters were at least 1°C colder than today.
But temperature may have been only part of the challenge. At 52.08° N, short winter days would have reduced the daylight available for feeding, foraging, moving, socialising and resting—potentially placing these macaques close to the limits of their ecological tolerance.
🔬 Sometimes, a fossil smaller than a centimetre can transform our understanding of an entire species’ prehistoric range.
Reference:
van Kolfschoten, T., Verheijen, I., & Serangeli, J. (2026). The first primate (Macaca cf. sylvanus) from Schöningen (Germany). Quaternary Environments and Humans, 4(3), 100116. doi.org/10.1016/j.qeh.2026.1…
#INQUA #QuaternaryScience #Palaeontology #Primates #BarbaryMacaque #Macaca #Pleistocene #Schöningen #Palaeoecology #Palaeoclimate #Fossils #QuaternaryEnvironments #ScienceCommunication #ResearchOutreach
Wourschaity retweeted
Relevant to multiple topics I've tweeted on in the last few days. IMO there was a long standing "hybrid zone" ~in the Near East between Sapiens and Neanderthals which shifted north and south until the OOA expansion
It may have be comparable to modern Baboon hybrid zones
Reassessment of the morphological evidence for hominin hybrids in the Levant rai.onlinelibrary.wiley.com/…
Wourschaity retweeted
David massively revised his preprint. Check out the new version!
Some highlights are more evidence for why range expansion specifically works better than an admixture pulse and what genes may have been inherited from the expanding "mode 3" population
biorxiv.org/content/10.64898…
1) Ancient DNA comes often with bad coverage. You can fill the gaps statistically using GLIMPSE fairly standard practice. The obvious worry however is does that quietly drag the ancient genome toward the moderns you borrowed from in Admixtools? So I tested it. 🧵




















































