It's "unusually persistent".
How is it so tiny O_O
Ever find toothmarks in a LEGO brick...?
A story of 17 generations.
Urgent action is needed on air pollution.
There's probably more to be found.
Okay, that's a bit of a different mental picture...
Earworms are real.
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When did humans start making clothes?
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More than 30,000 people have reported changes.
