Amoeba and sperm and virii and the other building blocks of life are small.  Retardedly small. They’re small in the kind of way that our limited monkeybrains can’t really understand without seeing.

Thankfully, the internet (in this case, courtesy of the University of Utah) lets us see, and therefore grok, all kinds of crazy cool stuff.

http://learn.genetics.utah.edu/content/begin/cells/scale/