Human maritime adaptation on Haitan Island, China, c . 7500 cal BP: new isotopic and dating evidence

Understanding how prehistoric human groups sustained themselves upon encountering novel island environments is crucial for modelling population movements in key world regions like Southeast Asia. Here, the authors present new radiocarbon dates and isotopic data for human and animal remains recovered from the Neolithic site of Xiying on Haitan Island, on the south-east China coast. The human remains are the earliest yet discovered on the island, their stable isotope ratios revealing a lifelong heavy reliance on marine foods despite the availability of a diversity of terrestrial resources, offering new insights into human adaptive flexibility in maritime environments.