Sloths are quadrupeds that sparsely populate the world of T.O.E. They are widely feared for their vicious temperaments and unstoppable savagery. Entire kingdoms will go on alert if a sloth is so much as rumoured to be ranging nearby.

Having reached a reputation of near-mythical proportions, sloths are often the subject of horrific tales and stories of fiction. The Plight of the Slothians postulates that there may be intelligent sloth societies, though the book is not as popular as some fans might hope.