Scientists have discovered the strongest evidence yet that healthy vertebrates can have brain microbiomes. Samuel Velasco / Quanta Magazine The original version of this story appeared in Quanta ...

Researchers imaging the fossil of a 300-million-year-old fish from Kansas have unexpectedly found a fossilized brain in the animal’s skull — the oldest known brain found to date. The find was a double ...

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Bacteria are in, around and all over us. They thrive in almost every corner of the planet, from deep-sea hydrothermal vents to high up in the clouds, to the crevices of your ears, mouth, nose and gut.