A...singing...penis. →
Not the traditional type of singing, with vocal cords and such, but impressive nonetheless. This itty-bitty water insect produces the loudest noise relative to its size by rubbing its penis against its abdomen, in order to attract a mate. To be fair, if you can sing from rubbing your own penis I highly doubt you need a mate.
But I am no expert on aquatic insects! I encourage you to click through so you can listen (yes, listen!) to these, erm, songs. [via]
