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Archaeological Recovery of Late Pleistocene Hair and Environmental DNA from Interior Alaska

https://doi.org/10.1080/14614103.2022.2031836

Wygal, Brian T.; Krasinski, Kathryn E.; Metcalfe, Jessica Z.; McMahan, David; Holmes, Charles E.; Crass, Barbara A.; Wriston, Teresa A.; Shirazi, Sabrina; Vershinina, Alisa; Shapiro, Beth (January 2022, Environmental Archaeology)

Ancient hair and remnant plant DNA are important environmental proxies that preserve for millennia in specific archaeological contexts. However, recovery has been rare from late Pleistocene sites and more may be found if deliberately sought. Once discovered, singular hair fragments are not easily identified to taxa through comparative analyses and environmental DNA (eDNA) extraction can be difficult depending on preservation or contamination. In this paper, we present our methods for the combined recovery of ancient hair specimens and eDNA from sediments to improve our understanding of late Pleistocene environments from the Holzman site along Shaw Creek in interior Alaska. The approach serves as a useful case study for learning more about local environmental changes.
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A polar bear paleogenome reveals extensive ancient gene flow from polar bears into brown bears

https://doi.org/10.1038/s41559-022-01753-8

Wang, Ming-Shan; Murray, Gemma G.; Mann, Daniel; Groves, Pamela; Vershinina, Alisa O.; Supple, Megan A.; Kapp, Joshua D.; Corbett-Detig, Russell; Crump, Sarah E.; Stirling, Ian; et al (July 2022, Nature Ecology & Evolution)

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Early dispersal of domestic horses into the Great Plains and northern Rockies

https://doi.org/10.1126/science.adc9691

Taylor, William Timothy; Librado, Pablo; Hunska Tašunke Icu, Mila; Shield Chief Gover, Carlton; Arterberry, Jimmy; Luta Wiƞ, Anpetu; Nujipi, Akil; Omniya, Tanka; Gonzalez, Mario; Means, Bill; et al (March 2023, Science)

Indigenous societies adopted horses of primarily Spanish origin before Europeans arrived in the Great Plains and the American West.
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