http://www.sciencemag.org/news/2017/03/watch-these-microbes-hunt-their-prey-microscopic-gatling-guns [sciencemag.org]
Microbial arms race: Ballistic "nematocysts" in dinoflagellates represent a new extreme in organelle complexity [sciencemag.org] (open, DOI: 10.1126/sciadv.1602552) (DX [doi.org])