44 days
None, the longest is the Asian elephant after a gestation period of 19 to 22 months.
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.
The gestation period (time of pregnancy) of a tiger is 104-106 days.
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.
fetal
African elephants have the longest gestation periods, at around 22 months.
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
The gestation for mice is approximately 19-21 days.
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.
Shortest: American Opossum or Virginian Opossum - 8 days Longest: Asiatic Elephant - 760 days *These are mammals, the longest remains the same but the shortest would be the house fly with a gestation period of 24 hours.