Scientists discovered microbes in Amazon peatlands that control carbon storage. If peatlands stay stable, they store carbon.

Both fungi and roundworms are outdone dramatically in turn by still smaller organisms. In a pinch of garden soil, about a gram in weight, live millions of bacteria, representing several thousand ...

Researchers have built a new microscopic imaging instrument that reveals a never-before-seen view of some of the smallest organisms in the world's oceans. WSJ's Monika Auger reports. Photo ...

Many organisms are small: including microbes that inhabit almost every crevice of the Earth; tiny worms that help build soils; and insects that spend their entire lives in tree tops. Alongside ...