Bacterial Portraits

I used to gloss over pictures like this in textbooks because they didn't mean all that much to me. They're always used as an example of electron micrographs. But as I see the clinical relevance of Staphylococcus aureus (the first image) and Escherichia coli (second image), these images become more and more beautiful. The first is 50,000x magnification, TEM; the second is 10,000x magnification low temperature EM; both images are in the public domain.