K9 the First writes...

"""Greg responds...

Family's good, thanks.

Camouflage... I don't know. Maybe that helps, but you don't need it to explain stone sleep evolution."""

True, but I'm the kind of guy who soaks this kind of stuff like a sponge. I guess I was pseudo-inspired by that Animal Planet documentary 'Dragons: A Fantasy Made Real', where they figured all the dragon stuff out from Evolutiary relatives(crocs and gators) to Fire breathing.

"""Stone sleep is a huge protection against predators in the pre-tool age. Claws and teeth don't bite through stone (or rather the organic stone-like substance that Gargoyles turn into). Even scent is altered. A stone gargoyle is of little interest to and in almost no danger from other animals. It's not until Humans developed tools -- thousands of years after Gargoyles evolved -- that stone sleep became a liability."""

Yes, I figured as much. Though the scent thing is surprisingly new to me. Why, I do not know. *shrugs*