Assertion: echidna | /r/HasProperty | one of the few mammals
Facets:
Source sentences:
text: The echidna is one of the few mammals that has a life expectancy of 50 years or more.
text: Echidnas, formerly called the spiny or spiky anteater, is one of only two mammals that lays eggs!
text: Echidnas are one of the only mammals on Earth that doesn’t give live birth, the other being the platypus.
text: Echidnas, spiny anteaters, are one of the first mammals on Earth, they emerged in the Cenozoic Era, being a species that has managed to stay alive thanks to its defenses and its adaptation of the terrain.
text: Echidnas, together with the platypus, are the world's only monotremes, or egg-laying mammals.