Oestrogen and progesterone
Fecundity is the ability to have more than one offspring.
The gestation period for birds varies depending on the species. On average, most birds have a gestation period ranging from 10-30 days. Some species, like ostriches, have longer incubation periods of around 40-45 days.
It depends on the species. Some have a gestation period of less than 3 to 5 days while others have a gestation period of over a week or two.
It depends on the species. Some species give birth to live young while others lay eggs. For example, a boa constrictor has a gestation period of around 100 to 120 days, while an anaconda will have a gestation period of around 7 months.
Dragonflies have been around for about 300 million years. They can have varying gestation periods, some can be five days, some can be seven months.
It depends on breed. Nigerians go at about 153. Some that have had them before go at about 145. The average is 145-155. But it depends on breed and individual goat.The average gestation period for a goat is ~150 days.
Gestation varies widely among animals, with some species like elephants having a gestation period of around 22 months, while others like mice have a gestation period of only 19-21 days. The length of gestation is influenced by factors such as the species' size, metabolic rate, and reproductive strategies.
about 1 year?
The gestation period for snakes can vary depending on the species, but typically ranges from 2 to 6 months. Some species may have longer gestation periods while others may have shorter ones. After the gestation period, female snakes give birth to live young or lay eggs.
A jennet's (female donkey) gestation period is 360-375 days or more in some cases, that is compared to a mare's (female horse) gestation period which is 335-345 days or more in some cases.
The period of time a mammal is pregnant (gestation period) ranges depending on the species. The species of mammal with the longest gestation period is the Asiatic Elephant with a maximum gestation period of 760 days. The shortest of American Opossum with a minimum of 8 days.
The shortest known gestation period among mammals is that of the Virginia opossum, which lasts about 12 days. This brief gestation allows the tiny, underdeveloped young to continue their development in the mother's pouch after birth. Other animals, like some species of rodents, also have short gestation periods, but the opossum holds the record among mammals.