gastrotrich lives the shortest it lives three days
It is believed that the animal with the shortest pregnancy is the bandicoot. They have a gestation period that only last 12 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.
Rats and mice 17 days.
May flies have the shortest life span on earth. They live for only 24 hours. These creatures are also called one day insects.
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.
The shrew's lifespan is shortest, lasting only about a year.
Mitosis, btw is this 8th grade homework
The gastrotrich (a minute aquatic animal) lives the shortest - three days. [JRT: the question asks about a mammal, which the gastrotrich isn't.]
Marsupials in general have short gestation periods since the babies are born into the pouch at a rather underdeveloped state. I think the shortest animal gestation period if I remember correctly is that of the opposum, it's 12-13 days long.
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.
1st period.
lion rose