New discoveries are upending the old theory of how the continent was settled.
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X-ray technology helps researchers reconstruct networks of interaction between ancient cultures. Working primarily with obsidian — a natural volcanic glass used historically for weapons and tools — the Max Lab team is able to tell where people travelled, who they interacted with and how craft traditions, such as agriculture, may have spread.
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Creatures on Earth have annual cycles consisting of life history stages of breeding, moult and migration. For some, moon cycles influence their periodic behavior, particularly in the case of birds.
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A tiny mountainous region in southern Siberia may have been the genetic source of the earliest Native Americans, according to new research.
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Governments around the world must be prepared for mass migrations caused by rising global temperatures or face the possibility of calamitous results, say University of Florida scientists on a research team reporting in the Oct.
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