Assertion: sperm whale's male | /r/CapableOf | reach maturity
Facets:
value: at 18-19 years
type: TEMPORAL
Source sentences:
text: A female reaches maturity at 9-10 years (males reach maturity at 18-19 years) and lives to be about 40 years old.
text: Young, sexually mature males form loose “bachelor groups” that disband as the males reach maturity.
text: Unlike males who reach maturity between twelve and sixteen years after birth, the females mature quicker, between six and ten years.