sentences:  While it has been suggested that the giant sloth may have been partly carnivorous, this is a controversial claim.Richard Fariña and Ernesto Blanco of the Universidad de la República in Montevideo have analysed a fossil skeleton of "M. americanum" and discovered that its olecranon—the part of the elbow to which the triceps muscle attaches—was very short.This adaptation is found in carnivores and optimises speed rather than strength.