A successful family may be one or two hatchlings that survive over a 70-year reproductive period.

During the reproductive period, the adults gather on some riverbanks near the coast.

The native sophonts had only two reproductive periods per Mardukan year.

We are not programmed to survive very long past the end of our reproductive period.

Large young may be associated with long lifespan, extended reproductive period, and reduced litter size.

Time of development to reproductive period is highly variable within and among species.

It appears on the palm of a fertile Yrythny as they enter their reproductive period.

The reproductive period of the petrels covers about eight months of the year.

Such circumstances result in competition between males during reproductive periods.

Males leave the matriarchal group following the reproductive period.