Assertion: black footed ferret | /r/HasProperty | thought extinct
Facets:
value: until 1981
type: TEMPORAL
value: in the 20th century
type: TEMPORAL
value: throughout their life
type: TEMPORAL
Source sentences:
text: The black-footed ferret was thought extinct until 1981 when it was discovered on a Wyoming ranch by a dog named Shep.
text: Black footed ferrets have thought to be extinct twice throughout their life,” Kaczor said.
text: The agency doesn’t know if COVID-19 will join sylvatic plague and canine distemper on the list of fatal threats facing black-footed ferrets, which twice in the 20th century were thought extinct and were listed in 1967 as endangered under the federal Endangered Species Act.
text: The black-footed ferret was thought extinct until 1981 when it was discovered on a Wyoming ranch by a dog named Shep.
text: The black-footed ferret was once thought extinct until 18 were found in 1981.