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Researchers discuss the ethical challenges of studying DNA from a 18th–19th century African American community

A population genetics team identified genetic relationship between 23andMe users and enslaved Africans in Catoctin Furnace, Maryland. The researchers consider ethics of sharing results with descendants and other relatives, highlighting importance of proper consent and minimizing harm.

SourceCell Press·JournalAmerican Journal of Human Genetics·TypeCommentary/editorial·DateAug 3, 2023

Human ancestry has been shaped by mixing and matching alleles

Recent studies reveal complex patterns of admixture in human populations, particularly in Africa and the Americas. In Africa, ancient introgression from Neanderthals and Denisovans contributed to increased genetic diversity, while in the Americas, modern admixture resulted in redistributed archaic ancestry.

SourceSMBE Journals (Molecular Biology and Evolution and Genome Biology and Evolution)·JournalGenome Biology and Evolution·TypeObservational study·DateMay 19, 2023

Traces from the past

A team of researchers has developed a non-destructive method to extract DNA from bones and teeth, allowing for direct attribution of cultural objects to specific individuals. The breakthrough enabled the recovery of ancient human DNA from a 20,000-year-old pendant, providing insights into Paleolithic societies.

Life’s work of University of South Florida researcher uncovers first ancient DNA from Swahili civilization

A University of South Florida anthropologist has uncovered the first ancient DNA from the Swahili Civilization, revealing African and Asian ancestry patterns. The study challenges centuries-old narratives and restores pride to the millions who identify as Swahili by providing clarity to their heritage.

SourceUniversity of South Florida·JournalNature·TypeObservational study·DateMar 29, 2023

Genomic study of ancient humans sheds light on human evolution on the Tibetan Plateau

A genomic study of ancient humans on the Tibetan Plateau reveals a single origin for ancient humans, deriving from a northern East Asian population. The study also found distinct genetic patterns in different regions of the plateau, indicating three regional groups with unique historical patterns that began to merge after 2500 BP.

SourceChinese Academy of Sciences Headquarters·JournalScience Advances·DateMar 17, 2023

Mummified crocodiles provide insights into mummy-making over time

A study of 10 mummified crocodile remains discovered in an undisturbed tomb at Qubbat al-Hawā offers new insights into pre-Ptolemaic mummification practices. The unique preservation style suggests a different approach to carcass evisceration and resin use compared to other archaeological sites.

SourcePLOS·JournalPLOS ONE·TypeObservational study·DateJan 18, 2023

DNA from archaeological remains shows that immigration to Scandinavia was exceptional during the Viking period

A new study on ancient Scandinavian genomes reveals a surprising increase in variation during the Viking period, indicating intense gene flow from eastern Baltic region, British-Irish Isles, and southern Europe. The gene pool bounced back after the Viking period, with northern Scandinavian gene pool showing a rare genetic component.

SourceStockholm University·JournalCell·DateJan 5, 2023

Discovery of world’s oldest DNA breaks record by one million years

Scientists have identified two-million-year-old DNA fragments in northern Greenland's Ice Age sediment, providing insights into the past ecosystem and its potential to predict climate change. The discovery has sparked hopes that it could help academics build a picture of the DNA evolution of species still in existence today.

SourceSt. John's College, University of Cambridge·JournalNature·TypeData/statistical analysis·DateDec 7, 2022

Jawbone may represent earliest presence of humans in Europe

A new analysis of a 45,000-65,000 year old fossil mandible from Spain suggests it may be the earliest documented presence of Homo sapiens in Europe, rather than a Neandertal. The study used CT scanning and 3D modeling to analyze the fossil's shape and features, finding that it shared characteristics with both humans and Neandertals.

SourceBinghamton University·JournalJournal of Human Evolution·TypeImaging analysis·DateDec 6, 2022

1,700-year-old spider monkey remains discovered in Teotihuacán, Mexico

Researchers found the skeletal remains of a 5-8 year old spider monkey in Teotihuacán, Mexico, which provides the earliest evidence of primate captivity and translocation. The discovery also reveals gift diplomacy between Teotihuacán and Mayan elite, challenging previous beliefs about Maya presence in the region.

SourceUniversity of California - Riverside·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateNov 21, 2022

Ancient DNA analysis sheds light on the early peopling of South America

Researchers used DNA from two ancient human individuals to unravel the deep demographic history of South America, providing new genetic evidence supporting existing archaeological data. They also discovered migrations along the Atlantic coast for the first time and found evidence of Neanderthal ancestry within ancient genomes.

SourceFlorida Atlantic University·JournalProceedings of the Royal Society B Biological Sciences·TypeComputational simulation/modeling·DateNov 1, 2022

Ancient DNA clarifies the early history of American colonial horses

A study published in PLOS ONE analyzed the oldest domestic horse specimen from the Americas, revealing a genetic lineage linked to Southern Europe. The findings support the hypothesis that horses originated on the Iberian Peninsula and highlight the importance of ancient DNA in understanding cultural and historical processes.

SourcePLOS·JournalPLOS ONE·TypeObservational study·DateJul 27, 2022

New genetic research on remote Pacific islands yields surprising findings on world’s earliest seafarers

Genetic analysis of ancient individuals from remote Pacific islands yields findings on family structure, social customs, and ancestral populations. The study suggests that matrilocal population structures were the rule among the world's earliest seafarers, with women often remaining in their communities after marriage.

SourceHarvard University·JournalScience·TypeComputational simulation/modeling·DateJun 30, 2022

Population bottlenecks that reduced genetic diversity were common throughout human history

A new analysis of ancient and contemporary genomes shows that more than half of historical groups experienced founder events, leading to reduced genetic diversity. This research has significant implications for scientists studying human genetic variation and the discovery of disease-causing mutations.

SourceUniversity of California - Berkeley·JournalPLOS Genetics·TypeData/statistical analysis·DateJun 23, 2022