Simplify the following text for a Grade 5 native English-speaking person.
Original: The living sloths belong to one of two families , known as the Megalonychidae ( `` two-toed '' sloths ) and the Bradypodidae ( three-toed sloths ) . All living sloths have in fact three toes ; the `` two-toed '' sloths , however , have only two fingers .
Simplified: Sloths are mammals that live in Central and South America .