Worthless without scale to verify the claim.
Agree. Too much photoshopping going on to give this much credibility. However, having done a lot of squirrel hunting when I was a kid I can confirm that the fos squirrel is much larger than the grey squirrel.
They were hunted intensively by the pioneers. I always thought it amazing they considered a squirrel worth the powder and shot, but squirrel rifles used very little.