Gram staining is one way scientists can identify bacteria. Gram-positive bacteria, such as Staphylococcus, appear blue or purple under a microscope when scientists apply a stain. Conversely, ...

Microbes make a home among the starch grains of your sourdough starter. Daniel Veghte, CC BY-SA Sourdough is the oldest kind of leavened bread in recorded history, and people have been eating it for ...

The fascinating world of bacteria that live as symbionts or parasites in animal hosts often remains a mystery to researchers. A research team has made a breakthrough that provides insights into this ...