As there has been some interest in parasites, I like to draw your attention to a paper that a friend of mine has recently published:
Shedding Light on Vampires: The Phylogeny of Vampyrellid Amoebae Revisited
Here is the link to an online version. It can be downloaded as a pdf as well:
http://www.plosone.org/article/info%3Ad ... ne.0031165
There many inspiring images of vampyrellids in this paper.
Images made through a microscope. All subject types.