Assertion: otter | /r/CapableOf | open their eyes
Facets:
value: at about 40 days
type: TEMPORAL
value: at one month of age
type: TEMPORAL
Source sentences:
text: They open their eyes at one month of age and are weaned at about 3 months old.
text: Approximately 2 months; Litters of 2 to 3 pups Nursing Duration Clawless otters open their eyes at about 40 days, and first swim at 9 weeks.