Recent studies suggest that animals and people alike have close and complex relationships with the bacteria around and within them. The human gut microbiome, for instance, has been associated with ...

One of the most diverse ecosystems on the planet is closer than you think—right inside your mouth. Your mouth is a thriving ecosystem of more than 500 different species of bacteria living in distinct, ...

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 ...

It is common knowledge that the human gut is home to hordes of bacteria, most of which seem essential for good health. But there is another component of the gut microbiome that receives less attention ...

Roughly 140 million Americans consume non-nutritive sweeteners regularly, and a trade group says substances have been ...

Harmful sugar made by gut bacteria can trigger immune damage connected to two devastating brain diseases. This data points to ...

A new species of bacteria has come to light in Brazil. It’s genetically similar to two other disease-causing bacteria from the Andes, which are known to infect humans through sand fly bites. According ...

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.