The first Australian plant foods at Madjedbebe, 65,000–53,000 years ago.

There is little evidence for the role of plant foods in the dispersal of early modern humans into new habitats globally. Researchers have hypothesised that early movements of human populations through Island Southeast Asia and into Sahul were driven by the lure of high-calorie, low-handling-cost foods, and that the use of plant foods requiring processing was not common in Sahul until the Holocene. Here we present the analysis of charred plant food remains from Madjedbebe rockshelter in northern Australia, dated to between 65 kya and 53 kya. We demonstrate that Australia's earliest known human population exploited a range of plant foods, including those requiring processing. Our finds predate existing evidence for such subsistence practices in Sahul by at least 23ky. These results suggest that dietary breadth underpinned the success of early modern human populations in this region, with the expenditure of labour on the processing of plants guaranteeing reliable access to nutrients in new environments. Little is known about the diets of early modern humans as they dispersed into Australia. Here, Florin et al. study charred plant remains from Madjedbebe rockshelter, which show that 65–53 thousand years ago, early modern humans in northern Australia already had a broad diet of plants. [ABSTRACT FROM AUTHOR]