Assertion: black footed ferret | /r/HasProperty | one of the rarest mammals
Facets:
value: always
type: DEGREE
Source sentences:
text: The black-footed ferret (Mustela nigripes) is one of the rarest mammals in North America, and between 1996 and 2008 it was considered extinct in the wild.
text: Black-footed ferrets have always been rare for as long as they’ve been known.
text: Native to North America, the black-footed ferret is a rare example of an animal that went extinct in the wild, but survived in captivity and was ultimately released again.
text: The black-footed ferret (Mustela nigripes) is one of the rarest mammals in North America, and between 1996 and 2008 it was considered extinct in the wild.