Females produce litters on an annual cycle in Darwin Harbor and on a biennial cycle in Shark Bay. The litter size ranges from one to six and is not correlated with the size of the female. The newborns are relatively large, measuring long, and are birthed in shallow nursery areas such as Herald Bight in Shark Bay. The juvenile growth rate is high for a shark; males and females mature sexually at around , respectively, in Darwin Harbour, and , respectively, in Shark Bay. The age at maturity is around four years for males and six years for females; the maximum lifespan is at least 12 years for males and 16 years for females.