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Ancient stone tools recovered from North Carolina and South Carolina are reshaping archaeologists' understanding of Ice Age hunting in eastern North America. While examining 120 Paleoamerican stone tools, scientists found clear signs of a link between people and extinct megafauna in the form of protein residues and use-wear traces preserved on the tools thousands of years ago.

As heatwaves become more frequent and intense around the world, scientists are exploring new ways to keep buildings cool without increasing energy consumption. Researchers at the University of Sydney, working with startup Dewpoint Innovations, have developed a nano-engineered coating that reflects up to 97% of sunlight and stays significantly cooler than conventional surfaces.