Assertion: echidna's spine | /r/HasProperty | long
Facets:
Source sentences:
text: Anatomy: The echidna has long spines protecting its body, long, sharp claws on the feet, and a very sensitive snout.
text: When sensing the danger from predators like dingoes, feral cats or red foxes, the echidnas will curl into a ball like a shape and expose their long spines.
text: And, like the porcupine, the echidna has long spines interspersed with fur covering its entire body.