Fruit bat fellatio? Really?

Yes.

Tan M, Jones G, Zhu G, Ye J, Hong T, Zhou S, et al. (2009) Fellatio by Fruit Bats Prolongs Copulation Time. PLoS ONE 4(10): e7595. doi:10.1371/journal.pone.0007595

You must watch the video! (Yes, there's video.)  The choice of music (yes, there's music) struck me as very strange.

Sorry for the digression from the main theme of the blog, whatever exactly that is.