sentences:  Megatherium
  
  Megatherium ( from the Greek "mega" [μέγας], meaning "great", and "therion" [θηρίον], "beast") is an extinct genus of ground sloths endemic to South America that lived from the Early Pliocene through the end of the Pleistocene.It is best known for the elephant-sized type species M. americanum, sometimes called the giant ground sloth, or the megathere, native to the Pampas region during the Pleistocene.