Several millions of RNA molecules move in unison
Synchronous behavior is widely observed in nature from firefly flashing in animals(1), sounds of hands clapping in human(2), heart and neural rhythm in biology(3,4) to nonmechanical oscillators(5,6) in the physical world...
Recycled calcium carbonate is an efficient oxidation agent under deep upper mantle conditions
Ca carbonate transported by subducting slabs could explain elevated ferric iron content in the upper mantle through redox reactions with Fe3+ garnet and graphite as products, according to high-pressure, high-temperature experiments.
More detail at https://www.nature.com/articles/s43247-021-00116-8.