Michael Pitts / Looking up at Three toed / Pale throated sloth {Bradypus tridactylus} swimming across mangrove channel, South America

Gerry Ellis / Pale-throated Three-toed Sloth (Bradypus tridactylus) clinging to tree in tropical rainforest, Brazil

Konrad Wothe / Pale throated three toed sloth climbing tree (Bradypus tridactylus) note green algae on fur, Costa Rica

Luiz Claudio Marigo / Maned Three toed Sloth (Bradypus torquatus) climbing tree, Atlantic Rainforest near Itabuna town, southeastern Bahia State, Brazil. Endangered. August 2010

Jouan & Rius / Pale throated three-toed sloth (Bradypus tridactylus) eating leaf, rainforest habitat, Costa Rica

Jouan & Rius / Pale-throated Three-toed Sloth (Bradypus tridactylus) eating leaf, rainforest habitat, Costa Rica

Jouan & Rius / Pale-throated Three-toed Sloth (Bradypus tridactylus) scratching its head, rainforest habitat, Costa Rica

Jouan & Rius / Pale-throated Three-toed Sloth (Bradypus tridactylus) eating leaf, rainforest habitat, Costa Rica

Gerry Ellis / Pale-throated Three-toed Sloth (Bradypus tridactylus) climbing tree trunk, Amazon Basin, South America

Piotr Naskrecki / Grass Moth (Cryptoses sp) on the fur of Pale-throated Three-toed Sloth (Bradypus tridactylus), Guyana

Piotr Naskrecki / Pale-throated Three-toed Sloth (Bradypus tridactylus) fur showing algae growth, Kamoa River, Guyana

Nick Gordon / Pale throated three toed sloth (Bradypus tridactylus) climbing Cercopia tree to feed on seed pods, Amazonia, Brazil