... if you wish to observe it yourself, I suggest getting starting a dream journal and also thinking about luna during the day. I don't support the scientific method, so I'm not really interested in providing 'scientific evidence;.
I do not accept non verifiable subjective oneiric experiences as evidence of anything other than I have experienced a product of my imagination or possibly a product of my subjective unconscious.
You have asserted that you have no concrete way to demonstrate and prove the existence of such creatures beyond your testament of your own personal subjective oneiric experiences.
Therefore, although
empirical by you and you alone, one should not view such an experience as being
evidence of the existence of such creatures (IMO).
I would have to say that you have failed to provide a single shred of evidence, let alone empirical evidence, as was requested by the OP.
20 pages of non-sense now....
I'm going to have to 'fourth' the request to lock this thread, as it is clear at this time that it is not, and will not be, going anywhere even close to the OP's request.