[Technically a video, but there you have it] – Insect wings lacerating bacteria. Yes, lacerating.
From Nature – “The veined wing of the clanger cicada kills bacteria without any chemical action — one of the first natural surfaces found to do so. An international team of biophysicists now has now come up with a detailed model (and some cool CGI) of how this defence works on the nanoscale.”
The Pandora Report 