The average elephant pregnancy lasts 640 to 660 days, or approximately 95 weeks. Nov 14, 2015 elephants have the longest gestation period of all mammals. The gestation periods of other animal reveals that the length of the. The shortest known gestation is that of the virginian opossum, about 12 days, and the longest that of the indian elephant, about 22 months. Elephant reproduction animal facts and information. This is roughly over 18 months, twice as long as the average human pregnancy. Elephants of all ages and sexes secrete a fluid called temporin out of this orifice. Elephants live in small family groups led by old females cows.
Apr 28, 2010 elephants have the longest gestation period of all mammals, carrying their young for nearly two years before giving birth. The 10 wildest pregnancies in the animal kingdom live. Gestation, in mammals, the time between conception and birth, during which the embryo or fetus is developing in the uterus. Part of the biology and environment book series sbes. The heat cycle lasts 18to21 days and is broken into four distinct stages. The average gestation age for elephants is 660 days. Cattle gestation table based on 283 days gestation. At up to 680 days average 647 days, elephants have the longest gestation period on earth. The wild lion lifespan is approximately eight to 10 years but can exceed 25 years in captivity. Think about the size of our bodies in comparison to an elephant. Environmental factors affecting the length of gestation in mammals. If this is the case, the survival rate of newborn elephants, also. Routine endocrine monitoring of the estrous cycle has been.
African elephants are also losing their habitat as the human population grows and people convert land for agriculture and development. Most males bulls live in bachelor herds apart from the cows. Young elephants begin taking care of calves at about ten years of age. The platypus and 4 species of echidnas do not give birth to live young, despite being a mammal. Why is the gestation period of an elephant so long.
Elephants have the longest gestation period of any mammal, lasting 20 to 23 months on average and typically giving birth to a single offspring. Elephants have the longest gestation period of all mammals, carrying their young for nearly two years before giving birth. Some larger mammals, like an elephant, take more time to develop before theyre ready to be born. A great education book for all who are curious about elephants. African elephant, facts and photos national geographic. In recent years, scientists projected a climate change in their habitat that could potentially bring in hotter and drier conditions. The gray skin is loose, tough, thick, and nearly hairless. Think how long it takes for the gestation of a human baby. The asian elephant gestation calculator is a much simpler process to use than the asian elephant gestation chart. Long developmental periods are common among highly intelligent animals. Elephants can make lowfrequency calls below the range of human hearing. The length of gestation is different for each type of mammal. Nov 11, 2016 this is one of the longest gestation periods in the animal kingdom.
Iirc, elves have a gestation period of 2 years, while dwarves have a gestation period of about 1. Elephants would wean after 6 to 18 months, but sometimes they would continue nursing for 6 more years. At sexual maturity, some female lions remain with the pride, but all male lions leave the pride. Scientists unravel the secret of how elephants stay pregnant for two. Breeders use these stages to determine the best time to breed their dogs. The gestation period of the dog is approximately 63 days. Like humans, each stage lasts for an extended period of time and very distinct developmental milestones characterise each level of maturity. The adolescent stage extends from the time that the elephant has been weaned 5 to 10 years of age until about 17 years old. Baby elephants weigh approximately 200 pounds when born and the gestation period in elephants is almost two years. Gestation, incubation, and longevity of selected animals. Elephants show a double luteinizing hormone lhpeak during the follicular phase and a 1216 weeks long oestrous cycle 911. Mastodons and elephants split about 25 million years ago, while mammoths split from the african elephant 7 million years ago and the asian elephant 2. They both give a great glimpse into the landscape, environment, terrain, and requirements that animals need in order to survive there. These two books go handinhand because they both talk about life in africa for elephants in how to be an elephant and other animals in i am africa.
Gestation lasts 22 months and produces a single calf, who will nurse for as long as four years. This is one of the longest gestation periods in the animal kingdom. Elephants can produce a variety of other sounds by beating the trunk on hard ground, a tree, or even against their own tusks. Elephants have the longest gestation period in nature, and carry their young inside them for nearly two full years. The length of gestation varies from species to species. The baby stage lasts from birth until the elephant has been weaned off its mother. Larger animals usually have longer gestations than smaller animals. Lactational anoestrus lasts for 8 to 12 months, and the interbirth interval ranges between 4 and 6 years, depending on. Apr 28, 2010 12 animals with the longest gestation period by.
Of all mammals, the elephant has the longest gestation period, which lasts anywhere between 620 days and 680 days almost two years, with intervals between births that generally last between four and six years. Luteal maintenance of pregnancy in the african elephant. The life cycle of the elephant can be categorised into 3 main periods the baby, the adolescent and the adult elephant. At up to 23 months, elephants boast the longest gestation period of any land animal. Elephants have massive bodies and heads, thick, pillarlike legs, and broad, short padded feet, with toes bearing heavy, hooflike nails. Animals related to each other usually have similar gestation periods. Gestation in elephants typically lasts around two years with interbirth intervals usually lasting four to five years. Within hours of birth, puppies, kittens, mice, and elephants can get up and move around on their own, because evolutionarily they had to be mobile to survive. The average gestation period for elephants is approximately 22 month.
Like all mammals, an elephant starts its life inside its mothers womb. The 10 wildest pregnancies in the animal kingdom live science. African elephants are distributed widely over the southern half of the african continent where, it is generally agreed, they exist as two main subspecies. Elephant gestation facts about the pregnancy periods of. Elephant gestation interesting facts about elephants. The first calves of the season are born about 2 months before the first rains, meaning that vegetation is soft and lush when they start to feed on it. By comparison, a human pregnancy lasts an average of 280 days, or 40 weeks. A baby elephant, although born live after 645 days of developing, still has to depend on. Because elephants require substantial amounts of food and a large area in which to forage, habitat destruction across their range is a major threat to survival. The calf is born after a gestation period of almost 2 years 22 months.
The first calves of the season are born about 2 months before the first rains, meaning that. Elephants embryo in 12th month why does pregnancy last so long. Female elephants begin reproducing at 11 years and continue through their fifties. Elephant pregnancy is unique scitech the earth times. It is probably the elephants enormous size and slow development that make this relatively long gestation period necessary.
Jun 12, 20 elephants have the longest gestation period in nature, and carry their young inside them for nearly two full years. The females tend to run away from the males and he will have to pursue her. Jun 19, 2012 elephant pregnancy lasts for 22 months. The rate at which a mammal goes through each stage of its life cycle differs for each type. But elephant gestation takes much longer than any other mammal, on land or in the sea. This game of cat and mouse can continue for a very long time before the actual mating does occur. If copulation is successful, then the pregnancy lasts for around 22 months.
Also known as the african savanna elephant, it is found in most african countries, living in varied habitats from the open savanna to the desert and high rainforest. It reaches up to 24 feet in length and feet in height. It is the largest of the three elephant species and can. January 1 october 10 march 1 december8 may 1 february7 july 1 april9 september 1 june10 november 1 august10 january 2. Sep 22, 2012 elephants show a double luteinizing hormone lhpeak during the follicular phase and a 1216 weeks long oestrous cycle 911. After being in the mothers womb for about 22 months the longest gestation period in mammals, the calves have a great deal to learn. Elephant facts the elephant sanctuary in tennessee. In the course of evolution the duration of gestation has become adapted to the needs of the species. The african bush elephant is the largest land mammal in the world. Elephants have the longest gestation period of all mammals.
Asian elephant gestation periods can generally be anywhere from 640670 days. Water for elephants by sara gruen, the elephant whisperer by lawrence anthony, modoc. However, several findings have remained without adequate explanation. Ovulation, pregnancy, placentation and husbandry in the. Elephants need a lot of room to roam, so habitat destruction. The average gestation period of an elephant is about 640 to 660 days, or roughly 95 weeks. Animal gestation or incubation, in days average longevity, in years record exceptions ass. Gestation definition of gestation by the free dictionary. Typically, the asian elephant has a gestation period of 645 days and the african elephant 640 days. Solved how long is the normal gestation cycle of an. The life cycle of the elephant can be categorized into three periods of time the baby elephant, the adolescent elephant and the adult elephant.
Elephant books 114 books meet your next favorite book. Ovulation, pregnancy, placentation and husbandry in the african. Gestation period days reference min max average alpaca. As can be seen in the chart, apes including humans, monkeys, big cats, and rodents can be clearly grouped according to their gestation period. Dr lueders said the extended pregnancy was due to a novel. They have the longestknown gestational period of any animal, lasting up to 680 days. Like most large mammals, the elephant takes a long time to develop, requiring a long pregnancy or gestation. The blue whale, for example, has a gestation period of around 1 year. The african elephant reproduces so efficiently in the wild that overpopulation is now a. Males and females both possess two glands that open between the eye and ear. Gestation is the period of time that a mammal carries her offspring, or babies, inside her body before giving birth. Animal gestation period chart that will leave you stunned. Gestation rates morrus unofficial tabletop rpg news. The anatomy of the elephant reproductive tract was described in detail by perry 1964, short 1966, laws 1969a and more recently by allen et al.
This definition raises occasional difficulties because in some species e. This time period is highly dependent on the condition of their habitat. However, the findings in the present study lend strong circumstantial support to the novel proposal by. Uses an average 645 day gestation period for an asian elephant. This text gives a great detail description of how to be an elephant. Researchers solve mystery of long elephant pregnancy. During this time, they are mostly able to carry out their usual tasks and duties without interruption though there is some evidence that a herd will travel with a pregnant cow in the middle, to protect her from anything that. The pregnancy lasts from 620 to 680 days, which led to research interest on placentation and embryonic development 4,1214. The courtship between a male and a female elephant is short lived. This informational text would be great to use in a classroom regarding science. Elephants 12 animals with the longest gestation period.
They will rub their bodies on each other and even wrap trunks. Human gestation, or pregnancy, lasts about nine months. The baby lifecycle describes the physical appearance of the newborn calf and its dependency on others in the herd for survival. Briefly, the uterus is bicornuate, with two relatively long horns that diverge laterally from each other about halfway along their length figure 1 a and figure 5 in the. As of late, poaching has caused the most serious damage to african bush elephant populations, with approximately 25,000 being lost every year. New research, published in biological sciences, investigates. Wild lions reproduce every two years, producing litters after a gestation period of 108 days.1512 553 1009 282 1529 629 1490 977 1509 637 377 1240 613 327 481 1367 1007 577 142 152 56 984 126 1412 139 634 116 873 120 1411 164 1443 844 514 18 1543 961 117 428 463 720 1034 370 265 1461 46 108