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Hot spring amoeba breaks record for heat tolerance of complex life

A tiny, single-celled organism can thrive at temperatures that would kill all other known complex life. In a study published in Cell, scientists describe a new species of amoeba that can eat and reproduce in hot spring water as warm as 63°C (145°F) in California's Lassen Volcanic National Park. The amoeba can protect itself at temperatures up to 70°C (158°F) by changing shape and forming a…

Hot spring amoeba breaks record for heat tolerance of complex life

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Metal detectorist finds record-breaking trove of ancient Roman coins

A man who discovered Roman silver coins in a field realized he had stumbled upon something bigger when his metal detector kept signaling.

  • Amateur Oliver Riedl discovers 934 Roman silver denarii in Germany.
  • Coins date from 148 B.C. to Flavian emperors' reign (A.D. 69–96).
  • Treasure likely buried in second century A.D. for wealth protection.

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