Humans and our ancestors have been exposed to lead for up to 2 million years, researchers have discovered — overturning the belief that lead poisoning is a relatively modern phenomenon. What's more, ...
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Ancient Human Brains Adapted From Exposure to Lead Poisoning, Providing an Evolutionary Advantage
Lead poisoning has plagued millions of people ever since the world became industrialized, but humans' troubled relationship with the toxic metal goes back much further in time. Our ancient ancestors ...
Blooms of the single cell algae known as phytoplankton are sometimes called red tides, which have been recognized since biblical times. The phytoplankton may become so numerous that they cause the ...
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