Idea suggested By Mystica The facility has no name for this creature, it is being named after what it seems to be.
Description
It is seemingly a normal Daddy long legs spider until there is a group where it rapidly starts taking the form of a face.
The few researchers Who have seen this event take place have said that it spoke to them, talking about how their lives will end, many tried to quit, or Self-Terminate.
The first Instance of these creatures were burned.
Interaction
Interacting with this entity when there is a single one is harmless, some may say it is even friendly, They seem to run in the direction where you could find more, as if warning you of the others presence.
When in a group it causes anxiety to rapidly raise and sanity to lower.
Meta notes Anxiety raises at a rate of 1d4 per 5 minutes. and Sanity Lowers at a rate of 5 per 5 minutes.