fetal
The shortest known gestation period is the Virginian opossum, which is 12 days. The longest period belongs to the Indian elephant, which has a gestation period of 22 months.
The African elephant holds the record for the longest gestation period among terrestrial mammals, lasting around 22 months.
Two marsupials share the shortest gestation period. The Virginian opossum and the yapok (an unusual, rare water opossum) have a gestation period period of 12-13 days. Several sources cite the Eastern quoll of Australia as also having a gestation period of 12-13 days, but this is incorrect. The Eastern quoll's gestation period is 21 days. The longest known gestation period of any animal is that of the African elephant. Its gestation period averages 660 days but can extend to 760 days.
The gestation for mice is approximately 19-21 days.
Elephants have one of the longest gestation period among mammals. They are pregnant for a period of around 22 months. After the 22 month gestation, they giver birth to a calf that is approximately 250 pounds heavy and stands at around 2.5 feet tall
Elephants have one of the longest gestation period among mammals. They are pregnant for a period of around 22 months. After the 22 month gestation, they giver birth to a calf that is approximately 250 pounds heavy and stands at around 2.5 feet tall
African elephants have the longest gestation periods, at around 22 months.
The gestation period for elephants is around 22 months, making it the longest gestation period of any mammal.
The recent studies show that the longest pregnancy or gestation period is of 3.5 years...yeah quite amazing...According to the the Gunnies world records 2011 the longest pregnancy period is of a common FRILLED SHARK (chlamydoselachus anguineus) of 1279.25 or more daysScientific Classification:Kingdom:AnimaliaPhylum:ChordataClass:ChondrichthyesSubclass:ElasmobranchiiOrder:HexanchiformesFamily:ChlamydoselachidaeGenus:ChlamydoselachusSpecies:C. anguineus
From what I can tell Elephants are pregnant the longest. They have a gestation period of 22 months. Some people may say that an Alpin Salamander is pregnante for three and a half years but I am unsure about that.
About 12 months NO!!!!!!!!!!! 7 WEEKS!!!!!
An elephant with a gestation period of 22 months.