What animal is pregnant the shortest?
The shortest known gestation is that of the Virginian opossum, about 12 days, and the longest that of the Indian elephant, about 22 months. In the course of evolution the duration of gestation has become adapted to the needs of the species.
Which animal gives birth only once in lifetime?
For some, of course, it’s normal to only have one or a couple offspring in a lifetime. But swamp wallabies, small hopping marsupials found throughout eastern Australia, are far outside the norm: New research suggests that most adult females are always pregnant.
What animal has a 9 month pregnancy?
The gestation period for a cow is about nine months long.
For mammals the gestation period is the time in which a fetus develops, beginning with fertilization and ending at birth. The duration of this period varies between species. The gestation period for a cow is about nine months long.
What was the longest human pregnancy?
The longest recorded pregnancy was 375 days. According to a 1945 entry in Time Magazine, a woman named Beulah Hunter gave birth in Los Angeles nearly 100 days after the average 280-day pregnancy. 2. One of the shortest recorded pregnancies where the infant survived was just 22 weeks.
Why is an elephant pregnant for 2 years?
The mystery of the elephant’s long pregnancy has been unravelled by scientists. A quirk of biology allows the unborn calf to develop in the womb for almost two years, giving it the brain power it needs to survive from birth.
What animal do not drink water?
The kangaroo rat never has to drink water—it just gets it from the seeds it eats. To survive in the dry climes of the American West, its kidneys generate super-concentrated urine, and it doesn’t pant or sweat.