An Unexpected Tool to Track Ancient Civilizations...Bacteria

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Scientists have used a bacteria that commonly infects us to track how ancient humans spread to the Americas from Siberia. And other scientists have discovered a new species of hyrax in the forests of Africa by listening to their barks and shrieks.

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Sources:
https://www.eurekalert.org/emb_releases/2021-06/yu-bit061021.php
https://academic.oup.com/zoolinnean/advance-article-abstract/doi/10.1093/zoolinnean/zlab029/6299316?redirectedFrom=fulltext
https://www.eurekalert.org/emb_releases/2021-06/uow-emo061021.php
https://www.pnas.org/cgi/doi/10.1073/pnas.2015523118

Images:
https://commons.wikimedia.org/wiki/File:EMpylori.jpg
https://www.istockphoto.com/photo/helicobacter-pylori-bacteria-gm892092148-246959082
https://www.istockphoto.com/photo/an-illustration-of-helicobacter-pylori-gm160617804-22951582
https://www.istockphoto.com/photo/the-helicobacter-pyloris-gm482337220-69940129
https://www.istockphoto.com/photo/people-of-the-ice-age-gm537816437-58008984
https://commons.wikimedia.org/wiki/File:Beringia_-_late_wisconsin_glaciation.png
https://commons.wikimedia.org/wiki/File:Iceage_north-interglacial_hg.png
https://commons.wikimedia.org/wiki/File:Beecroft%27sTreeHyrax.JPG
https://commons.wikimedia.org/w/index.php?curid=74177018
https://www.eurekalert.org/multimedia/pub/252314.php?from=488092
https://commons.wikimedia.org/wiki/File:Map_of_River_Niger.svg
https://www.eurekalert.org/multimedia/pub/252316.php?from=488092
https://www.istockphoto.com/vector/high-detailed-africa-physical-map-gm844077708-138126735
https://commons.wikimedia.org/wiki/File:Skull_of_Dendrohyrax_dorsalis_1873.png
https://commons.wikimedia.org/wiki/File:Tree-hyrax.jpg
https://www.inaturalist.org/photos/11841805
https://www.istockphoto.com/photo/niger-river-from-the-left-bank-niamey-niger-gm1171610926-324651746
https://www.istockphoto.com/photo/helicobacter-pylori-stomach-gm496159007-41362210