I saw a wolverine on Lake Nipigon at Ingall point 20 years ago—a buddy of mine got one last winter in a Marten cubby north of Beardmore.
Fishers are not numerous here but i hear about 3 or 4 being trapped every year. I treed several on the south shore of Lake Superior with my bear hounds during training season.
I have never seen one near as big as the one AK375 is holding in that picture.