Edentata

Hedgehog, or Urchin, a small insect-eating mammal related to the mole and shrew. Of the 15 species of hedgehogs, most are found in Europe, Asia, and… See more » Echidna, or Spiny Anteater, an egg-laying mammal closely related to the duckbill platypus. The echidna is 17 to 28 inches (43 to 71 cm) long and… See more » Aardvark, an African mammal. The name means “earth pig” in Afrikaans and refers to its resemblance to a pig and to its habit of digging. The… See more »