The sloth pays such little attention to its personal that green grow on its coarse hair and communities of a live in the depths of its coat producing caterpillars which graze on its hair.

• 树獭即不讲究卫生，以至于它粗糙的毛发上生出绿苔，成群的寄生蛾生长在它的皮毛深处，变成毛毛虫，并以它的脏毛为食。