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  1. Archaeology

    Ancestors who came in from the cold

    Researchers found the remains of a 36,000-year-old human occupation in the Russian Arctic, which represents the earliest evidence of a human presence that far north.

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  2. Archaeology

    Neandertals used tools with versatility

    Microscopic data from artifacts found at two Ukrainian sites indicate that Neandertals used stone tools in flexible ways that allowed them to maintain a broad diet for nearly 50,000 years.

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  3. 18968

    I’ve just read your account of the “ekpyrotic model” of the universe. Although descriptive, “ekpyrotic” seems rather contrived and is hard to pronounce. Certainly it lacks the pizzazz of “Big Bang.” And “Big Crunch” has been used previously to refer to the “anti-Big Bang” catastrophe thought to be awaiting the universe.