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Which animal has most pregnancy period?
The African elephant has the longest gestation period followed by the Asian Elephant & Sperm Whale.
| Rank | Mammal | Days |
|---|---|---|
| 1 | Elephant (African) | 645 |
| 2 | Elephant (Asian) | 617 |
| 3 | Whale (sperm) | 480–590 |
| 4 | Rhinoceros (black) | 450 |
How long are different animals pregnant for?
The gestation period for a cow is about nine months long.
| Mammal | Gestation period (days) |
|---|---|
| Deer (white-tailed) | 201 |
| Dog (domestic) | 58–65, Average 61 |
| Donkey | 365 |
| Elephant (Asian) | 617 |
What animal gets pregnant by itself?
Most animals that procreate through parthenogenesis are small invertebrates such as bees, wasps, ants, and aphids, which can alternate between sexual and asexual reproduction. Parthenogenesis has been observed in more than 80 vertebrate species, about half of which are fish or lizards.