Word of God

>A) Has she used her ability on snails or slugs? Probably not due to their lack of combat utility, but it would interesting as whilst still ganglionic, Mollusca nervous systems are a whole leap ahead of arthropods and annelids.
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>B) Trying to use her power on squid would be even more interesting as they have actual complex brains in addition to a ganglionic nervous system. If she can bypass their brains it would imply all sorts of things of what she could do to higher animals. What is the sinoatrial node of the vertebrate heart if it isn’t a very stupid ganglionic subbrain?
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>D) At the other end of the scale, can she pick up the signals of nematodes? They are more closely related to insects than insects are to worms, and they do have discrete nervous systems. If yes then she effectively has a ‘life radar’ as every single vertebrate has millions of the things in their gut all the time. Ditto every patch of soil and plant. Not useful offensively but would still be pretty amazing to have. Same question obviously with Rotifers, which certainly have as much brain as tapeworms and are near as ubiquitous as nematodes.

A) Yes. She can control them.

B) Squids are out of bounds.

D) Not stated outright in the story, but her inability to sense people suggests that she can’t sense/control nematodes (or dust/skin mites for that matter). Not saying it’s definitely for sure, but a probable reason would be due to size constraints. A minimum size.

—Word of God: Wildbow, John Charles McCrae
	Source: https://parahumans.wordpress.com/2012/06/09/infestation-11-7/#comment-2385
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