No one has picked a paper yet, so I thought I'd jump in. My first thought was to pick something from the new book, Dragonflies and Damselflies: Model Organisms for Ecological and Evolutionary Research. But next week will be a busy week, and I was instead turned on to a paper that is rather fun, and is PC in that it is open source.
The paper is on "worm grunting", and is a very cool example on how humans take advantage of an antipredatory response in worms (such a think is not necessarily limited to humans). It also appears at first glance to be a good example of the value of multiple working hypotheses (something we all need to remember). The paper can be downloaded here.