Assertion: female narwhal | /r/CapableOf | reach sexual maturity
Facets:
value: at six years
type: TEMPORAL
value: according to the american cetacean society
type: OTHER
Source sentences:
text: Female narwhals reach sexual maturity at around 4 to 7 years old, compared with 8 or 9 years for males, according to the American Cetacean Society .
text: Female narwhals reach sexual maturity at six years when they are ready to mate.
text: Female narwhals reach sexual maturity around 8 or 9 years old while males begin mating anywhere between 12 and 17 years old.
text: Research suggests that female narwhals reach sexual maturity, or can start reproducing, at eight to twelve years of age, and males, at a much older age.