Not necessarily true for (b): quiet inhabitants may be ratted out by other inhabitants. Birds will literally call out "snake" (in their bird language) or "puma

Not necessarily true for (b): quiet inhabitants may be ratted out by other inhabitants. Birds will literally call out "snake" (in their bird language) or "puma" to alert others. Stuff You Should Know covered it on an episode "How We're Learning to Talk to Animals": https://www.iheart.com/podcast/105-stuff-you-should-know-26940277/ https://www.iheart.com/podcast/105-stuff-you-should-know-269...