KnowraEchidnaLinked fromLinked fromThe 6 pages that link to Echidna, each with the reason it gives.All 6Broader topic 3Compared with 3AnteaterCompared with: Its monotreme ancestry and spiny body distinguish it from anteaters.PorcupineCompared with: Echidnas have spines, but they are monotremes rather than rodents.ErinaceidaeCompared with: Echidnas look superficially hedgehog-like but belong to a distant mammalian lineage.