On a Blade of Grass, a new short story by Tim Pratt-- mostly parasitology, and a fine example of the things-are-worse-than-you-think strain in science fiction.
Anyway, it was recommended in a friendslocked post and I appreciate the recommendation, but post compares it to Tiptree's And I Awoke and Found Me Here on a Cold Hill's Side (another fine example of TAWTHYT), and that's when the memes hit because it's not the best Tiptree for the purpose. I can't remember the name of the right story, but it's the one where humans are gametes that feel compelled to go out into space to join with our other halves.
This entry was posted at http://nancylebov.dreamwidth.org/463298.html. Comments are welcome here or there. comments so far on that entry.