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A Particle Accelerator Reveals the Truth About These 540 Million-Year-Old Fossils: They Were Not the First Animals, but Microbes.

Brazilian fossils of 540 million years old, long taken for traces of the first animals, are actually bacteria. This reanalysis upsets our vision of primitive life. The first animals of the Brazilian fossil register turned out to be microbes For decades, sinuous structures in the rocks of Mato Grosso do Sul fascinated paleontologists. These marks appeared to correspond to furrows carved by tiny worms or other small marine animals. They would then…
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Brazilian fossils of 540 million years old, long taken for traces of the first animals, are actually bacteria. This reanalysis upsets our vision of primitive life. The first animals of the Brazilian fossil register turned out to be microbes For decades, sinuous structures in the rocks of Mato Grosso do Sul fascinated paleontologists. These marks appeared to correspond to furrows carved by tiny worms or other small marine animals. They would then…

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Science-et-vie.com broke the news on Saturday, May 30, 2026.
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