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 of the microbial ecosystem in sourdough finds that using different types of flour fosters distinct bacterial communities, and that these differences contribute to the variation of ...

A coral reef in Honolulu, Hawaii. Half of global coral coverage has disappeared since the 1950s. Donald Miralle via Getty Images Imagining a coral reef might bring to mind scenes teeming with fish, ...

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' ...