The Origin of Modern Humans

by Roger Lewin

Human beings

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Many new findings, speculations, and reevaluations have sharpened our views of modern human origins since then. Nevertheless, the controversy continues, as the patchy fossil record and new evidence derived from genetic techniques have given rise to competing theories. Are we the result of a single uninterrupted lineage, with each distinct species of human leading directly to the next? Or, do species such as the Neanderthal represent offshoots of an evolutionary tree that died out without leaving successors? Did modern humanity arise roughly contemporaneously in different parts of the world or from a single species in a single location? And how do biological, linguistic, artistic, and technological factors distinguish Homo sapiens from near and distant relatives? At stake in the argument is nothing less than the very definition of what it means, biologically and culturally, to be human

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