echidna(redirected from Piggibilla)
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echidnaany of the spine-covered MONOTREME mammals of the family Tachyglossidae, found in Australia and New Guinea. They have a long snout and claws for digging out ants.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005