Some species of sloth are endangered. This is due to the de-forestation of rain forests such as the amazon ect. There are many organisations trying to help the sloths. These are two.
WWF: https://www.worldwildlife.org/species/sloth
Sloth Sanctuary Of Costa Rica: http://www.slothsanctuary.com/
WWF: https://www.worldwildlife.org/species/sloth
Sloth Sanctuary Of Costa Rica: http://www.slothsanctuary.com/