You got me! That’s (AFAIK) the only photoshoped (not by me) animal image in the whole series.

This is the real one, according to Suzette` Franck it was taken by “Oscar Gonzalez H.”:

This sloth suddently fall from a tree, and I started to get close and take some pictures. My friend grab firmly the animal, and he was very agressive with his strong sharp claws. The animal was also dirty, plagged of insects and parasits, like the one barely seen at his left fur.