How Neanderthals got human Y chromosomes, and the earliest human footprints in Arabia

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By Science Magazine. Discovered by Player FM and our community — copyright is owned by the publisher, not Player FM, and audio is streamed directly from their servers. Hit the Subscribe button to track updates in Player FM, or paste the feed URL into other podcast apps.
Contributing Correspondent Ann Gibbons talks with host Sarah Crespi about a series of 120,000-year-old human footprints found alongside prints from animals like asses, elephants, and camels in a dried-up lake on the Arabian Peninsula. These are the earliest human footprints found so far in Arabia and may help researchers better understand the history of early hominin migrations out of Africa. Continuing on the history of humanity theme, Sarah talks with Janet Kelso of the Max Planck Institute for Evolutionary Anthropology, about her team’s efforts to fish the elusive Y chromosome out of Neanderthal and Denisovan DNA. It turns out Y chromosomes tell a different story about our past interbreeding with Neanderthals than previous tales told by the rest of the genome. Read a related Insight article. This week’s episode was produced with help from Podigy. Listen to previous podcasts. About the Science Podcast Download a transcript (PDF).

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