The American Society for Microbiology held its 4th contest for images created from microorganisms feeding on agar. 

Contrary to some hypotheses, the organelles did not descend from any known lineage of Alphaproteobacteria, researchers find.

Authors of a new study suggest that 520-million-year-old structures, previously identified as the brains of ancient arthropods, are instead preserved microbial biofilms.

A new study finds that more than 200 human-targeted, non-antibiotic drugs inhibit the growth of bacterial species that make up part of the human microbiome.

A molecule produced by a strain of Staphylococcus epidermis interferes with DNA synthesis.

Scientists are beginning to unravel the ways in which we develop a healthy relationship with the bugs in our bodies.

Water bears can reanimate after years of desiccation—and gel-forming proteins unique to the animals may explain how.

By simulating the structure and composition of Mars’s rocky materials, scientists observe how the metal-eating, extreme environment–inhabiting microbe Metallosphaera sedula could alter extraterrestrial environments.

A new study identifies microorganisms residing in the human fallopian tubes and uterus, but some researchers are skeptical of the findings.