Scientists are trying to understand how complex life emerged on Earth about 2 billion years ago. Our microbial ancestors could be the key.

A new study from Hong Kong reports that some of the microbes found in a range of urban environments are evolving to resist the cleaners we typically use to eliminate them. Just like humans, every city ...

A study on wild northern cardinals shows that stress can change gut microbes and affect bird health in measurable ways.

A high-fat diet can cause the intestinal lining to weaken, allowing live gut bacteria to travel directly to the brain in mice ...

Flour choice shapes the bacteria in sourdough starters, even though the same yeast dominates across all types.

The "hygiene hypothesis" suggests exposure to diverse types of microbes may protect against developing diseases caused by allergens, but a new Cornell University study in mice reveals that adults' ...