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Why Do These Fossil Shells Flip Their Spirals Every Few Millennia? | Quanta Magazine
The mystery of the flipping foraminifera may conceal a rarely observed evolutionary process playing out across the planet.
September 12, 2026 at 3:56:30 PM GMT+1 ·
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https://www.quantamagazine.org/why-do-these-fossil-shells-flip-their-spirals-every-few-millennia-20260911/
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