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Neanderthals were more susceptible to lead poisoning than humans — which helped us gain an advantage over our cousins, scientists say
Humans and our ancestors have been exposed to lead for 2 million years, but the toxic metal may have actually helped our ...
Although a short U.S. government shutdown would be unlikely to have much impact on air travel, a prolonged impasse could lead to disruptions for passengers and financial losses for businesses, ...
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