Which of these images do you find the most frightening? Which the most beautiful? Which the most relevant to human existence?
On the left, the highest-resolution image of a virus ever taken. It’s the Epsilon 15 Bacteriophage (i.e. a virus which infects bacteria), and if you count viruses as being alive then it’s one of the most abundant forms of life on Earth.
On the right, a photo of what one guy found growing under his co-worker’s computer monitor. There’s a full image gallery. Hat-tip to Boing Boing.