Other World - animal concept
The idea is of a mirror, fantasy version of earth, where animals and other parts of society have a tad bit more fantasy to them although still maintaining a level of biological animal feel to it. These are a few creatures for a region that would mirror that of North America
The Camping Snapper is an inspiration between the biggest tortoises, galapagos and the ferocity of Snappers with the added ability to blend in with cattails to make them both terrifying to encounter, but hard to spot.
Inspired by the extinct giant slots, but giving them the power of modern gorillas, those great sloths are peaceful despite their muscles, chances are they will break a tree before they'll break someone's back.
In a mirror earth, there is a chance that some animals never went extinct at all, and this is the idea with a still roaming, still vicious, living terror bird.
Convergent evolution where the goal was not to fill the same spot, but stead to use another animal's visuals to make its life easier. This is actually an animal closer related to canines like the Maned wolf, who evolved to resemble deers almost to a T.
Long bunnies may sound cute but not only they pack a kick, but use their long bodies to sling off when jumping and making raptor birds miss them from their confusing flailing.
massive super visons with tusks so big, they rely on eating tall grass, for grazing with them is almost impossible.