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 ...

Your nails might look clean, but the space beneath them is a tiny ecosystem—one that collects more bacteria than most people realize. From keyboards to grocery carts to your phone screen, your hands ...

Cheese fungus, head lice, human sperm, a bee eye, a microplastic bobble: scientific photographer Steve Gschmeissner has imaged them all under the probing lens of a scanning electron microscope (SEM).