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Refugees From the Ice Age: How Was Europe Repopulated?
Scientists have used DNA analysis to gain important new insights into how human beings repopulated Europe as the Ice...
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Tidal Heating Shrinks the Goldilocks Zone
A previously little-considered heating effect could shrink estimates of the habitable zone of the Milky Way’s most numerous class...
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Safety in Numbers Doesn’t Always Apply to Extinction Risk
A basic tenet underpinning scientists’ understanding of extinction is that more abundant species persist longer than their less abundant...
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Largest Known Croc Likely Ate Early Man
The largest known crocodile was big enough to swallow a human being and likely terrorized our ancestors two to...
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New Jupiter Mission to Target Alien Oceans
The European Space Agency’s next big mission may be particularly juicy for scientists hunting for signs of extraterrestrial life....
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Ancient Volcanic Blast Provides More Evidence of Water on Early Mars
The atmosphere of Mars is less than 1% the density of Earth’s. It’s one of the reasons liquid water...
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A Duplicated Gene Shaped Human Brain Evolution
Two groups of researchers, led by Evan Eichler and Franck Polleux, have found that humans, alone among all animals,...
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An Underground Fossil Forest Offers Clues on Climate Change
In the clammy depths of a southern Illinois coal mine lies the largest fossil forest ever discovered, at least...
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Lightning Signature Could Reveal Solar System’s Origins
Every second, lightning flashes some 50 times on Earth. Together these discharges coalesce and get stronger, creating electromagnetic waves...
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Plant Diversity is Key to Productive Vegetation
Vegetation, such as a patch of prairie or a forest stand, is more productive in the long run when...