See also:

• Kids and Teens: School Time: Science: Living Things: Animals: Mammals: Sloth  (4)

• Family: Bradypodidae - General information and anatomy of the three toed sloth.
• Family: Megalonychidae - General information and anatomy of the two toed sloth.
• Not Living up to their Name - Max Planck scientists find evidence that sloths in the wild sleep a lot less than previously thought. [PDF]
• Pale+throated Three+toed Sloth: Bradypus tridactylus - Research project by Joe Thomas on this tree+living mammal including its classification, habitat, reproduction, adaptations, nutrition and interactions with other species.
• Three+toed Sloth - Information from Wikipedia on the four sloths included in the Bradypodidae family.
• Two+toed Sloth - Information from Wikipedia on the classification of the family Megalonychidae which contains just two species, Choloepus didactylus and Choloepus hoffmanni.