The smallest of the species, the pink fairy armadillo, possesses one of the most extraordinary rumps in the animal kingdom.

The pink fairy armadillo spends much of its time under the ground, as it is a "sand swimmer" similar to the golden mole or the marsupial mole.

In loose solids such a sand some animals, such as the golden mole, marsupial mole, and the pink fairy armadillo, are able to move more rapidly, 'swimming' through the loose substrate.

In addition to the honey badger, the book also includes chapters on the aye-aye, the Tasmanian devil, the Emperor tamarin, the pink fairy armadillo, the tarsier, the opossum, the solenodon, the wombat, the American bullfrog, and the sloth.

Both the lesser pichiciego, Chlamyphorus truncatus, and the similar and slightly larger greater pichiciego, Chlamyphorus retusus, are fairy armadillos, the smallest members of the overall armadillo family, the Dasypodidae.