because it takes longer for a human to develop its advanced brain and organs than it takes for a bird to develop its stupid brain
Incubation varies from 17 to 35 days, with the larger species have the longer incubation periods
Evolution is the change in species over long periods of time.
Several species of whale have gestation periods of around 18 months.
I think you're going to have to be a little more specific - which animal? All species have different gestation periods.
That depends on the species you are asking about. Different animals give birth after different periods of gestation.
The change of inherited characteristics of species over long periods of time is called evolution.
The Gestation period of salamanders differ with species. there is a wide range of species of this animal, and so it goes without saying that there is a wide range of gestation periods too. If you would like to refine your question to a specific species, i will be glad to help. I know this because i am currently a student studying A-Levels in animal management and behaviours, and i have recently been studying this topic myself.
a model of evolution in which short periods of drastic change in species are separated by long periods of little or no change
Fairies don't give birth, so they don't have gestation periods.
Gestation vetoes from species to species and usually relates to the size of birth-- the smaller the animal the smaller the gestation
what is a gestation or incubation for a mountain lion
It depends on the species, gestation periods range from from 16 days for the Syrian hamster, and up to to 30 days for the Dwarf hamster.