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Linnaeus's two-toed sloth : ウィキペディア英語版 | Linnaeus's two-toed sloth
Linnaeus's two-toed sloth (''Choloepus didactylus''), also known as the southern two-toed sloth, unau, or Linne's two-toed sloth is a species of sloth from South America, found in Venezuela, the Guyanas, Colombia, Ecuador, Peru, and Brazil north of the Amazon River. There is now evidence suggesting the species's range expands into Bolivia. == Phylogeny == Sloths belong to the order Pilosa, which also includes anteaters. They belong to they super order Xenarthra, which includes the Cingulata. Xenarthra are edentate or toothless. They lack incisors and have a large reduction in number of teeth with only four to five sets remaining including canines. Modern sloths are divided into two families based on the number of toes on their front feet, Megalonychidae and Bradypodidae. Linnaeus's two-toed sloth and Hoffmann's two-toed sloth (''Choloepus hoffmanni'') belong to the Megalonychidae family, which included extinct ground sloths.
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