A couple of interesting articles I read concerning early arrival in Australia recently: http://theconversation.com/when-did-aboriginal-people-first-arrive-in-a

A couple of interesting articles I read concerning early arrival in Australia recently: http://theconversation.com/when-did-aboriginal-people-first-arrive-in-australia-100830 http://theconversation.com/when-did-aboriginal-people-first-... https://www.sciencealert.com/50-000-years-ago-hundreds-of-ancient-humans-made-the-first-voyage-to-australia https://www.sciencealert.com/50-000-years-ago-hundreds-of-an... The theories contained in those articles include the ideas that they arrived initially in relatively large numbers in a somewhat organized fashion, and migrated around the Australian coastline in both directions.