At long last, fossil hunters have found the coveted "missing link." Again.
Even before naturalist Charles Darwin — born two centuries ago this year — published "On the Origin of the Species," the phrase "missing link" had entered the lexicon. It quickly became a kind of shorthand criticism of evolution, as in "they've yet to find the missing link" between humans and apes.
But that's getting a bit ahead of the story. Or, perhaps ...
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