I read the books by Ivan T. Sanderson decades ago. I have no interest in fake creatures.
How to find what creatures live in your area...Place a bait station where they can get to it. Run a loose barbed wire fence around it. Then come back and collect hair samples from the fence. No strange hairs have ever been found.
“No strange hairs have ever been found.”
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That is patently false. FYI:
https://www.spokesman.com/stories/2019/jun/06/idaho-state-professor-says-fbi-research-dilutes-ev/