Echidna vs. Porcupine
Difference Between Echidna and Porcupine
Any of the species of small spined monotremes in family Tachyglossidae, the four extant species of which are found in Australia and southern New Guinea.
Any of several rodents of either of the taxonomic families Hystricidae (Old World porcupines) or Erethizontidae (New World porcupines), both from the infraorder Hystricognathi, noted for their sharp spines or quills, which are raised when the animal is attacked or surprised.
New Guinea echidnas
relatively large rodents with sharp erectile bristles mingled with the fur
burrowing spine-covered monotreme of Australia having a long snout and claws for hunting ants and termites