The hippopotamus or hippo, further qualified as the common hippopotamus, Nile hippopotamus, or river hippopotamus, is a large semiaquatic mammal native to sub-Saharan Africa. It is one of only two extant species in the family Hippopotamidae, the other being the pygmy hippopotamus.
Hippos have a relatively long gestation period of around 240 days or eight months. Zookeepers will probably separate the father, Tucker, from Bibi during the birth and for about two weeks after.
The gestation period is just 8 months, only slightly shorter than the human gestation period. However, the hippo calf is about 10 times larger than a human baby. When the female nears the time to give birth, she leaves the herd for one or two weeks to give birth to her young and create a bond with her baby.
According to the World Atlas, the animal with the shortest pregnancy is the Virginia opossum. Their gestation period is only 12 days before the young are born.
Once considered rare, so-called virgin births have been documented among various species — including sawfish, snakes, sharks, and birds. The process, which is more common in the plant and insect worlds, allows a female organism to replicate itself without fertilization from a male.
Share: Elephants have the longest pregnancy period of any living mammal. If you – or someone you know – has experienced a pregnancy that seemed to go on forever, spare a thought for the elephant. It's the animal with one of the longest gestation periods of all living mammals: nearly two years.
Female lions, lionesses, are able to give birth to cubs all year round, usually from the age of about three or four years old. Pregnancy lasts for around 110 to 120 days.
Giraffes. Giraffes have gestation periods anywhere from 400 to 460 days (13-15 months).
The baby is able to swim, though it can't hold its breath as long as an adult hippo can. Mother hippos take good care of their babies, fearlessly protecting them from enemies such as crocodiles, lions, hy- enas, and leopards. Young hip- pos often stay in the herd with their mother for years.
Did you know the longest brooding period or 'pregnancy' of any known animal is a whopping four and a half years? If you think female African elephants have it tough with their 22-month gestation period, spare a thought for the deep-sea octopus Graneledone boreopacifica.
How many days is a horse pregnant? A female horse's gestation period is approximately 326 days to 354 days. Gestation can be as long as 375 days and the record longest gestation period for a horse is over 400 days – just over 13 months!
A cow is pregnant for around nine months (or 279 to 292 days). The gestation length varies depending on several factors, such as the breed of the cow and the sex of the calf.
The tiger's gestation period is about three and half months. It is difficult to identify a pregnant tigress because they do not begin to show a bulge until the last 10 to 12 days of pregnancy.
Pregnancy in dogs, also called the gestation period, normally ranges from 57-65 days, with an average of 63 days. With a planned breeding, you should record the exact date of mating. If there are two matings, note the dates and expect birth to occur between 63 and 65 days later.
Elephants have the longest pregnancies of all mammals. Rabbits can have a litter of babies after 25-28 days (about a month) whereas elephants are pregnant for around 680 days (22 months!).
The typical cat pregnancy will last between 63 to 65 days, or about nine weeks. However, there are exceptions to the rule. Just like humans, cats can sometimes give birth a little early or a little late. If you think your cat is pregnant, it is best to confirm it with your veterinarian.
In their native Madagascar, Tailless Tenrecs (21-29 nipples) have litters of roughly 15 on average, with up to 32 reported in the wild.
The length of gestation varies from species to species. 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.
Many species of fish, like the kobudai, are known as “sequential hermaphrodites”: they can switch sex permanently at a specific point in their lives. The majority of “sequential hermaphrodites” are known as “protogynous” (Greek for “female first”): they switch from female to male.
Seahorses and their close relatives, sea dragons, are the only species in which the male gets pregnant and gives birth. Male seahorses and sea dragons get pregnant and bear young—a unique adaptation in the animal kingdom. Seahorses are members of the pipefish family.
In the first known case of a 'virgin birth' among the species, a crocodile has been found to have made herself pregnant. The 18-year-old American crocodile was kept away from other crocodiles in a zoo in Costa Rica. But that didn't stop her producing a fully formed foetus inside one of her eggs in 2018.
The first fawns will be born in the later portion of spring after a gestation period of around 200 days. The females with give birth to 1-3 fawns at a time (National Geographic). Near mating season the deer will release secretions from sweat glands on their legs for intra-species communication (Desert USA).
Seven of nine pregnant cows at oestrus stood willingly to be mounted by a bull. On seven occasions, bulls exposed only to cervical mucus from pregnant cows showing oestrus did not display flehmen.