What is a gestation for seals?

Gestation periods for seals can vary depending on the species. Here are the gestation periods for some common seal species:

Harbor seal (Phoca vitulina): 9-11 months

Gray seal (Halichoerus grypus): 11-12 months

Harp seal (Pagophilus groenlandicus): 11-12 months

Hooded seal (Cystophora cristata): 11-12 months

Spotted seal (Phoca largha): 9-10 months

Ringed seal (Pusa hispida): 10-11 months

Bearded seal (Erignathus barbatus): 11-12 months

The gestation period begins when the fertilized egg implants in the female's uterus and ends when the pup is born. During gestation, the developing pup receives nutrients from the mother through the placenta.