Assertion: grizzly bear's year | /r/HasProperty | the oldest known age
Facets:
Source sentences:
text: Wild females have been observed reproducing up to 28 years of age, which is the oldest known age for reproduction of any ursid in the wild.
text: In the wild most die before reaching adulthood; 15-25 years is considered old.
text: Wild females have been observed reproducing up to 28 years of age, which is the oldest known age for reproduction of any ursid in the wild.