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In this episode, we speak with Before Us co-host Helen Farr about her European Research Council project, Australasian Colonisation Research: Origins of Seafaring to Sahul—or simply, ACROSS. This ambitious project dives into oceanographic, geoscience, archaeological, and archaeogenetic data to figure out when and how people first made the journey to Sahul, what routes they might’ve taken, and just how long they were stuck in a boat. Spoiler: it wasn’t a weekend trip. These early voyages don’t just tell us about getting to Sahul—they also help us understand the bigger picture of how modern humans spread around the world. Think of it as the original travel blog...but with fewer selfies and more science.

Key People

Helen Farr

Key Places

Bonaparte Gulf

Key Projects

ACROSS Project

Further Reading

Anthony Fogg, Justin Dix, Helen Farr. Late Pleistocene Palaeo Environment Reconstruction from 3D Seismic data, NW Australia.The ACROSS project - Australasian Research: Origins of Seafaring to Sahul. Authorea. January 06, 2020.

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The rapid dispersal of modern humans across Wallacea to modern day Australia not only required boat technology for long-distance sea travel, but also knowledge about deep-sea fishing. In this episode, we talk to Sue O’Connor about the different routes that people may have taken across Wallacea in the Pleistocene and how the different kinds of islands on those routes may have influenced maritime resource use and the earliest evidence of pelagic fishing.

Key People

Susan O'Connor - Australian National University

Key Sites / Concepts

Asitau Kuru / Jerimalai

O'Connor, Sue, Ono, Rintaro, and Clarkson, Chris. Pelagic Fishing at 42,000 Years Before the Present and the Maritime Skills of Modern Humans.Science334,1117-1121(2011).DOI:10.1126/science.1207703

Kisar

O’Connor, S., Mahirta, Kealy, S., Boulanger, C., Maloney, T., Hawkins, S., … Louys, J. (2018). Kisar and the Archaeology of Small Islands in the Wallacean Archipelago. The Journal of Island and Coastal Archaeology, 14(2), 198–225. https://doi.org/10.1080/15564894.2018.1443171

Laili

O’Connor, Sue, Ceri Shipton, and Shimona Kealy. "The southern route to Sahul: modern human dispersal and adaptation in the pleistocene." The Prehistory of Human Migration-Human Expansion, Resource Use, and Mortuary Practice in Maritime Asia. IntechOpen, 2023.

Shipton, C., Morley, M.W., Kealy, S. et al. Abrupt onset of intensive human occupation 44,000 years ago on the threshold of Sahul. Nat Commun 15, 4193 (2024). https://doi.org/10.1038/s41467-024-48395-x

Maritime Networks

O’Connor, S., Kealy, S., Reepmeyer, C., Samper Carro, S. C., & Shipton, C. (2022). Terminal Pleistocene emergence of maritime interaction networks across Wallacea. World Archaeology, 54(2), 244–263. https://doi.org/10.1080/00438243.2023.2172072

Pleistocene female burial with fish hooks

O’Connor S, Mahirta, Samper Carro SC, et al. Fishing in life and death: Pleistocene fish-hooks from a burial context on Alor Island, Indonesia. Antiquity. 2017;91(360):1451-1468. doi:10.15184/aqy.2017.186

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In this special bonus episode, Erich answers some of the fantastic questions that we've received from listeners around the world. If you want to send us your own questions about anything you've heard on Before Us, or just comment in general, please hit the "send us a text" button above every episode description. We would love to hear from you!