TEXT aardvarks.txt
  TEXT amoeba.txt
  TEXT bats.txt
   DIR bears
  TEXT bears.txt
  TEXT beavers.txt
   DIR birds
  TEXT bison.txt
  TEXT camels.txt
  TEXT cats.txt
  TEXT cows.txt
  TEXT deer.txt
  TEXT dogs.txt
  TEXT dolphins.txt
  TEXT elephants.txt
  TEXT fish.txt
  TEXT frogs.txt
  TEXT gorillas.txt
  TEXT horses.txt
   DIR insects
  TEXT moose.txt
   DIR other
  TEXT pigs.txt
  TEXT rabbits.txt
   DIR reptiles
  TEXT rhinoceros.txt
   DIR rodents
  TEXT scorpions.txt
  TEXT spiders.txt
  TEXT wolves.txt