There are also four species of three-toed sloths including Bradypodidae pygmaeus, a pygmy species. The other three are B. torquatus, which has a mane; B. tridactylus also known as the pale-throated, three-toed sloth; and B. variegatus, the brown-throated, three-toed sloth. They share many characteristics with their two-toed cousins, but a few things are different.