A question for any brave soul out there:
Can Bio Signatures be used to check for what isn't known? For instance: Being already aware an unknown alien species is about round a certain area, could the Bio Signatures check for this unknown species by using this very fact, thusly "scanning the unknown" (a "negative scan")?
My PCs are playing The Pleasure Bringers & became aware of the Druath, yet, Xenobiology told 'em nothing. They're trying scanning the jungle with Bio Signatures, to see what lifeforms are new (& unknown) to the ship's scanners... thus locating them critters... Should I allow this?