Early humans in China innovated technology to adapt to climate change 1-million years ago

To assess the degree to which early stone tool-using hominins modified their tool manufacturing behaviours in Eastern Asia, archaeologists examined three well-known archaeological sites from the Nihewan Basin in North China.

Stone tool comparisons between the archaeological sites of Xiaochangliang, Cenjiawan and Donggutuo indicate that technological skills increase at ca. 1.1-1.0 million years ago.

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The stone tools at Cenjiawan and Donggutuo show increasing levels of control in manufacturing procedures and some degree of planning in the tool-making process to produce desired end-products.

The technological innovations at ca. 1.1-1.0 million years ago in the Nihewan Basin correspond with a major climate transition that occurred between 1.2 million years ago to 700,000 years ago (called the Mid-Pleistocene Climate Transition).

Ecological, biological and stone tool information from 2.2 million years ago to the present (the light red horizontal bar shows increased climate variability) (a) Global climate change. (b) Vegetation history of the North China Plain based on pollen analysis. (c) Hominin brain size estimates for Africa and Eurasia. (d1) Stone tool changes through time in the Nihewan Basin, China, showing the frequency of artefacts across different time periods (dark green bars). (¬d2) Key stone tool changes across China. Image Credit : Science China Press

A series of global and regional palaeoclimatic and palaeoenvironmental changes occurred during this period, such as increases in aridity and monsoonal intensity and decreases in sea surface temperatures in the North Atlantic.

At 1.1 million years ago the early human inhabitants of the Nihewan Basin lived under a changeable and unstable environment, experiencing strengthened aridification. As climatic variability produced ecological changes, including landscape alterations and mammalian extinctions, novel technological innovations likely provided benefits to early hominin populations in the Nihewan Basin.

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The unstable environmental conditions at the onset of this period provides a good example of the adaptive versatility of hominins in China, contrasting with the notion of long-lasting conservative behaviours described by other archaeologists. Yet, the increasingly harsh and oscillating climatic conditions of this period likely undermined sustained population in North China, illustrating that technological and cultural solutions did not always overcome environmental challenges.


Header Image Credit : Science China Press

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Mark Milligan
Mark Milligan
Mark Milligan is multi-award-winning journalist and the Managing Editor at HeritageDaily. His background is in archaeology and computer science, having written over 8,000 articles across several online publications. Mark is a member of the Association of British Science Writers (ABSW), the World Federation of Science Journalists, and in 2023 was the recipient of the British Citizen Award for Education, the BCA Medal of Honour, and the UK Prime Minister's Points of Light Award.

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