The gestation period of cow ranges from 279 to 287 days. Plenty of other creatures gestate their young for much longer, taking a surprisingly long time to develop. A heifer or female calf is a female that has not had any offspring. Read: Dairy Buffalo Project Report for 10 Animals. These fascinating creatures also bear live young and, while they average at around 6 pups per litter, they can have anywhere from two to eleven pups per litter. Once the creature is fertilized, the gestation period begins, and the … The shortest gestation is that of the Virginian opossum, about 12 days, and the longest gestation that of the Indian elephant, about 22 months. Ewes normally weigh between 100 and 220 lbs, and rams between 45 and 160 kilograms (100 and 350 lbs). Yes, the gestation period of elephants lasts for 18 to 22 months. Aside from the pre-parturition practices the knowledge of gestation period aids, it helps farmers decide, know when to expand and the expected yield or stock per year. A female calf is called a heifer calf and a male a bull calf. In general, the larger the animal, the longer the life. Rabbits differ in color and size, ranging in weight from 2 to 16 pounds (1 to 7 kilograms), depending on breed. Basking sharks are very slow-moving and almost completely indifferent to humans. The gestation period varies across the different mammalian species. For small animals such as rabbits the period is about 33 days and for mice about 20 days. Today we’ll be looking at 10 of the longest gestation periods in nature and ranking them according to how many months long they are on average. Female orcas tend to live to around 50 years in total, although some specimens have lived to be as old as 90! The period of pregnancy also known as gestation period is the time between conception and parturition (giving birth). The largest pigs can weigh from 660 lb to 700 lb. Unfortunately, the long gestation period and long intervals of four to five years between calves has contributed to the declining population. Orcas are classified as apex predators, meaning that no other animal hunts them, and their greatest threat is habitat loss caused by humans. Male walruses reach sexual maturity a few years later than females do. This table lists the proper age for first mating, the animals' period of fertility, the number of females for one male, and period of gestation (days) for: ewe, ram, mare, stallion, cow, bull, sow, boar, doe goat, buck goat, bitch, male dog, queen cat, tom cat, doe rabbit, and buck rabbit. In the course of evolution the duration of gestation has become adapted to the needs of the species. Depending on the breed, sheep varies a range of heights and weights. After birth, they'll keep their babies hidden for up to six weeks. 10. Elephant tops the list when it comes to the longest gestation period in normal cases. Elephants are known as “gentle giants” with calm dispositions, although they can reach speeds of over 40 mph if needed without any difficulty! In humans, the gestation period is normally nine months or 270 days. The gestation period for pig is generally from 112 to 120 days. Sperm whales are the largest toothed whales in the world, and they feed on a variety of squid, sharks, fish, and various cephalopods. African bush elephants have approximately 40,000 tendons and muscles in their trunks alone! * = 280 days, from the first day of a woman's last menstrual period. The water buffalo is 8 to 9 feet from head to rump with its tail adding an extra 2 to 3.3 feet. It is economically important to detect if a female animal is pregnant or not. Did you know that there are few animals that have a much longer gestation period than humans? They generally weigh 1,320 to 2,200 lbs. Alongside having surprisingly long gestation periods, alpine salamanders also give birth to completely metamorphosed young! They can reproduce up to 10 times a year. Their rate of growth and mature weight is a heritable trait that is selected for inbreeding. The gestation period of water buffalo is longer than that of cows which is between 281 to 334 days. Most of the females can hide their pregnancy until a few days to delivery. The frilled shark has more than 200 teeth! The gestation period for a cow is about nine months long. Rabbit has the shortest gestation period of one month or less. Sperm Whale: The female among the sperm whale have a gestation period of about 14 to 16 months before giving birth. Elephants have the longest gestation periods of any mammal on land or in the oceans, and generally travel in groups of females and their young led by a matriarch. Save my name, email, and website in this browser for the next time I comment. Elephants 18 – 22 Months . However, the human gestation period is dwarfed by that of many other mammals. The gestation period is the time interval between the conception time and parturition, that is, the period between the development of a fetus in mature female farm animal and reproduction; this is also called the period of pregnancy. An elephant’s skin can reach up to one inch in thickness over some areas of the body! Walruses are actually so large that they have hardly any natural predators besides the occasional polar bear or orca! For most breeds, 283 days would be very common. For this reason, they don’t need the muscle bulk around their necks that their grass-grazing counterparts do. The water buffalo is the very largest bovine. The gestation period is the time interval between the conception time and parturition, that is, the period between the development of a fetus in mature female farm animal and reproduction; this is also called the period of pregnancy. (700 to 1,200 kilograms). Depending on the breed, management, and the environment, the modern domestic horse has a life expectancy of 25 years to 30 years. Pigs are very similar to the human body. Mountain goats can weigh from 125 lbs to 180 lbs. The term ‘gestation period’ refers to the time span it takes for a fetus to develop inside its mother’s womb, beginning with fertilization and ending at birth. Elephants are highly intelligent and sociable creatures, and the Indian variety are located in India, Indonesia, Vietnam, and occasionally other nearby areas. Mr. Reddy was born in farmer's family and was into 'IT' profession where he was not happy with his activities. Average human baby pregnancy time vs. other mammals. In other words, it is the period of time when the development of the fetus or baby occurs inside the female animal. Some species of hamsters like the Dwarf Russian hamster have the ability to delay implantation of the fetus after mating. Goats could survive and thrive just about anywhere. 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