xreactivity

a measure of relatedness between two antigenic substances

Wicked Bugs

Wicked Bugs: The Louse That Conquered Napoleon's Army & Other Diabolical Insects - Amy Stewart

 

A quick survey of lots of truly creepy bugs, with great illustrations. I'm giving this 2 stars because I would have liked more depth and detail. Do not read if you are at all squeamish about this sort of thing.