Like other requiem sharks, the dusky shark is viviparous: the developing embryos are initially nourished by a yolk sac, which is converted into a placental connection to the mother once the yolk supply is exhausted.
With a gestation period estimated at up to 22-24 months and a one-year resting period between pregnancies, female dusky sharks bear at most one litter of young every three years [REF].