The Choloepus is the two-toed sloth, the Bradypus is the three-toed sloth. The Choloepus and Bradypus sloth are the only two species of sloth left on earth. Within them, we have the Pygmy three-toed sloth (Bradypus pygmaeus), maned sloth (Bradypus torquatus), pale-throated sloth (Bradypus tridactylus), brown-throated sloth (Bradypus variegatus), Linnaeus’s two-toed sloth (Choloepus didactylus) and Hoffman’s two-toed sloth (Choloepus hoffmanni).