Lucy Cooke about a sloth sanctuary and orphanage in Aviarios del Caribe in Costa Rica. It does extremely important and serious work but there are lighthearted moments to be had. One of them is ensuring that baby sloths learn how to poo (as the lady puts it in the film!) properly.
One of the funniest things I have heard for a long time is the sound of the baby sloth crying on this video - even tho that does sound a little cruel of me. The main subject of the clip brings a smile to the face as the whole process of sloth bowel evacuation is one that seems to end in something close to orgasm for the animal - the blissful look on their faces make them look like teenage stoners after the munchies have been satisfied.