The average gestation period for a pig is 114 days. The actual labor can take as little as 15 minutes and as long as 5 to 6 hours.
a long time
An average of 42 days is the time is takes for a ferret to give birth.
The time it takes for Molly to give birth can vary, but on average it can take around 6 to 12 hours for a dog to give birth to a litter of puppies.
i think it will take about two weeks
100 Years
It takes 12 months for a dolphin to give birth to another dolphin (calf).
Mollies typically give birth within 4 to 6 weeks after mating.
This can all depend how smoothly the birth goes. The best is below the 1 hour mark, but sometimes you get horses or other members of the Equidae family that take hours to give birth. For instance, it has been heard of that a zebra has had her waters broken at about 15:00 and she was forced to give birth through an operation at 19:00 because her young would not come out.
about 72 hours
About 30 days
like a year
....it takes about 9 mounths