Here’s the other sloth species that I saw in Panama. I really wanted better photos of these guys but they just didn’t give me that many good looks. They are generally more nocturnal than three-toed sloths, so there was that, but they also had a habit of either hiding behind foliage, or showing me their backside. They actually look quite a bit different from three-toed sloths, other than the obvious difference of having one less toe. They are lighter and more blonde in color, with longer, softer looking, less matted fur. And they have a different shaped face, with more of a pinkish nose. This one was doing his/her sloth-y thing at night in the rain.
Nikon D810 with Nikkor 200-400mm lens (at 310mm) ISO 800, f/6.3 at 1/160th of a second