Don't be afraid to break the forth wall a bit, perhaps at the end of the post, to give us gamemaster perspective or some plot hooks. But it is fine without those, but I think game use or plot hook sections would add a different dimension to this piece.
The second to last paragraph in the Appearance and Behavior section could use a rewrite.
But on the whole I really like it. It hints at something larger and has an interesting atmosphere. Go to Comment
Very impressive! I would like more information on their origins, as most subs here are expected to be the domain of GM's. A such, secrecy is good, but there should be a section with the real dirt :)
Lifeforms (Constructed) (Mountains)