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Bear gestation period

Bear - Bear Sold Direc

  1. Black bear females typically produce cubs every two years once they become mature. The 2-year reproductive cycle is genetically timed to fit the annual cycle of plant growth and fruiting of the region. In northeastern Minnesota, black bears mate in late May or June
  2. The bear's gestation period is 194-278 days. The cubs are born into the winter den in January-February. There are usually one or two cubs, sometimes three, but litters with four cubs are also not unheard of. A bear cub feeds on its mother's fatty milk during the first few months of its life
  3. Yell 707 Information Paper BMO-7 Kerry A. Gunther, Bear Management Biologist February 2016. On the evening of 13 August 1967, two women were attacked and killed by grizzly bears (Ursus arcto) in separate incidents within Glacier National Park (GNP).Following these incidents, there was speculation that due to odors associated with menstruation, women may be more prone to attack by bears than.

What Is the Black Bear Reproductive Cycle? - North

The Black Bear Mother & Her Cubs Cubs are born in January after a gestation period of approximately 7 months. Although mating occurs in June, fetal development takes place mainly in the last 2 months of pregnancy after the fertilized egg implants in the uterus in November (delayed implantation) Mother bear can only provide a limited amount of protein during the 50 day gestation period of her cubs. She needs to conserve almost all protein for herself in order to maintain muscle mass. Perhaps, mother bear can't afford to provide protein to the growing cub. What can a fat, sleeping bear provide then The gestation period of a bear is somewhere in the neighbor hood of 32 weeks, this means that around Janurary or February the sow will give birth to the young cubs during hibernation. The cubs can range in number from one to five and are typically six to eight inches long when they're born Daily urine volumes for two bears were 2-4 gallons (8-16 liters). Nitrogen losses were 2.4 to 3.7 ounces (69-104 grams) (Nelson et al. 1983). Stage 5 —Fall transition is a period after hyperphagia when metabolic processes change in preparation for hibernation. Bears voluntarily eat less but continue to drink to purge body wastes Bears generally live solitary lives, but can be found together during mating season. The average breeding age for female black bears is 3.5 years and for female grizzlies is 4.5 years. Males reach sexual maturity at roughly the same age as their female counterparts. Even though males are capable of breeding at three or four years of age, they.

Factors affecting the gestation period in mammals. There are several factors affecting the length of the gestation period in mammals. Animal size/ mass. There is a positive relationship between mass at birth and length of gestation in eutherian mammals. Larger mammals are more likely to produce a well-developed neonate than small mammals Gestation Period in Days : 15-20. Animals related to each other usually have similar gestation periods. As can be seen in the chart, apes (including humans), monkeys, big cats, and rodents can be clearly grouped according to their gestation period. The platypus and 4 species of echidnas do not give birth to live young, despite being a mammal

Mating season for grizzly bears is from May to July, according to ADW. Fertilized eggs start to develop but implantation in the uterus is usually delayed until November, when the female is.. Spectacled bears can mate all year round but breeding usually takes place between April and June. They have a gestation period of 6-7 months although true gestation may be as little as 65 days because spectacled bears can delay implantation The gestation period of a female black bear takes about 225 days. The maturity of a bear will depend on its sex. If its a female it will most likely be mature at 2-3 years old and a male will be ready at about 4 years old. The life expectancy of an American black bear is 10 years

Then, after a gestation period of 180-270 days, the mother gives birth in the den, usually while still hibernating. Cubs are born blind and toothless sometime between December and March, and weigh. Gestation Period Animal Gestation Period; Aardvark: 213 days: Clouded Leopard: 70 days: African Bush Elephant: 20 - 24 months: Coyote: 63 days: African Civet: 60 - 70 days: Deer (Mule and White-tailed) 200 days: African Forest Elephant: 22 - 24 months: Dog: 62-64 days: African Palm Civet: 64 days: Dolphin: 12 months: African Wild Dog. Once the female enters the den and has begun her true pregnancy, she'll have a gestation period of around four months. During this time she will enter a state similar to hibernation. Her heartbeat will slow from 46bpm to 27bpm, but her body temperature doesn't rise, as is normal with other hibernating species. Giving Birth & Leaving The De 10) The overall gestation period for black bears is 45 to 60 days, and cubs are born from January through mid-February. An average of two to three blind and hairless cubs, weighing less than 1.. The total gestation period is about eight months. Gestation includes a period of delayed implantation. The fertilized egg divides into a hollow ball of cells one layer thick (a blastocyst), then stops growing and lies free-floating in the uterus for about four months. The blastocyst then implants in the uterine wall and continues to develop

Bear behaviour and reproduction - Suurpedot

until late November. In early December, embryo development proceeds normally (delayed implantation: a process shared with badgers, mink, weasels, otters, and wolverines). Birth occurs in late.. Within similar animals, there is some variation as well: grizzly bears have an average gestation period of 225 days, but black bears have an average of 210 days, and polar bears have an average of 240 days. The average gestation of a polar bear is longer than for other bears The idea that bears might preferentially attack menstruating women is not new. In 1967, a night of infamous grizzly bear attacks in Glacier National Park in Montana left two women dead. One woman. Gestation Period. ·. The gestation period is about six months. The female has to gain 440 pounds in two months to. survive without food as long as she is in the. den. The female polar bear goes in her den in the fall and. does not come out until the spring. In the spring it will be the first time the new cubs will

Bears and Menstruating Women - Yellowstone National Park

  1. The gestation period of a polar bear is 195 to 265 days. Cubs are typically born in January but they may not come out of den until March. The average number of cubs is two but three are also common across some of its range especially in Hudson Bay. The weaning period ends in spring and the cubs become independent at the age of 2.3 years age
  2. The gestation periods of the animal kingdom are varied and fascinating. Some clock in at just a few weeks, making any human green with envy, while others can last more than a year
  3. Her hormones from this period show elevated progesterone concentrations that stay elevated for roughly 60 days—the typical length of a bear gestation. Because no cubs were born, this could indicate that Andean bears, like giant pandas, experience pseudopregnancies
  4. The normal gestation period in dogs is approximately 63 days from conception, although this can vary by several days. While this might seem like a straightforward answer, conception is often hard.
  5. es the length of the gestation period. Smaller species normally have a shorter gestation period than larger animals. For example, a cat's gestation normally takes 58-65 days while an elephant's takes nearly 2 years (21 months)
  6. Gestation Period within Female Koalas. The female koalas normally have the gestation period of just 34 to 36 days only. Even though this gestation period is very short (a few weeks or so) but it is very normal considering the fact that koalas are the marsupial mammals
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The Black Bear Mother & Her Cubs Bear With U

bear's embryo goes dormant, free-floating in the uterus. After the female dens in late fall, the embryo implants in the uterine wall and development of the fetus proceeds rapidly. Although the total gestation time is approximately seven months, the actual developmental period for the bear fetus is less than three months Daily urine volumes for two bears were 2-4 gallons (8-16 liters). Nitrogen losses were 2.4 to 3.7 ounces (69-104 grams) (Nelson et al. 1983). Stage 5 —Fall transition is a period after hyperphagia when metabolic processes change in preparation for hibernation. Bears voluntarily eat less but continue to drink to purge body wastes Bears have their own natural birth control. Mating season: Late May through June in much of North America. Sometimes the female will come into estrus again in July or August. Males are ready to mate throughout that period but each female is ready for only a few days Gestation Period: 186 - 248 days; embryonic development begins 5 months after fertilization. Breeding : 1 - 5, normally 2; weaning occurs at 6-8 months. Food : Omnivorous, eating fruit, vegetation, carrion and salmon The second reality is the bear rut. Bears can basically breed anytime they aren't denning, but the peak breeding period is a 60-day time period between late May, through June, and into early July. Most spring bear hunting seasons end in mid-to-late June

After a six- to seven-month gestation period sloth bears normally give birth to a litter of two cubs in an underground den. The cubs will often ride on their mother's back, a unique trait among. Bears also have short gestation periods, and giving birth to a litter of cubs shortly before entering the winter torpor period would also be hard for both the new cubs and the mother. Because of these problems natural selection pressure has been strong enough to give rise to the adaptation of delayed implantation After a gestation period that is known to vary dramatically (between 3 and 8 months) depending on the individual and the amount of food available, the female Sun Bear gives birth to up to three cubs (but usually only one cub is born) in a nest that she makes in a large cavity such as a hollow tree

Number of Young Per Gestation: 2-15. Source: wikimedia.org. The Frilled Shark has the longest known gestation period of any animal. It is unique among most sharks in that it feeds in very deep waters and serpentines while it moves, swimming in an eel-like manner Gestation period: 5.5 - 8.5 months. Hibernation period: Spectacled bears do not hibernate because of their tropical habitats. Length: 1.2 - 2 m (Adult) Mass: Male: 100-200 kg (Adult), Female: 35-82 kg (Adult) More about Spectacled Bears. South America's only bear species, the Spectacled bear is the last of the short-faced bear. Black bears breed in June and early July, but the cubs are not born until January. Researchers have found that the gestation period is not as long as it appears. There is a delayed implantation of the fertilized egg in the female bear in December and the gestation period is only eight weeks The gestation period of a bear is between 180 and 270 days. The mother usually gives birth in its den during hibernation.The gestation period (time of pregnancy) for a bear is 180-270 days

A squirrel gestation period (the time that they are pregnant) lasts less than a month to a month and a half. An Eastern gray squirrel's gestation period is 44 days; an American red's 40 days; a Fox squirrel's 45 days; a Flying squirrel's 40 days; and a Ground squirrel's gestation period is 25-30 days Walruses. Walruses have the longest gestation period of all pinnipeds (a group of mammals that includes seals and sea lions), carrying their young for as long as 15 to 16 months. Seal and sea lion. The spring represents a period of food stress, as most bears emerge from the den. Reproduction. Black bears breed from May through August, with most breeding activity peaking in June and July. Throughout the summer, males travel over large areas to enhance their chances for encountering mates. Although males become sexually mature at 1-2 years. The gestation periods of other animal reveals that the length of the gestation period is largely a matter of the animal specie's size. Asian elephants have a gestation period of 645 days and African elephants 640 days. Dogs and other canines have a gestation period of about 60, which is also the period for cats

Birth of a Brown Bear - Katmai National Park & Preserve (U

How Do Deer Give Birth? (and what are the first days like

Breeding facts: Giant pandas reach sexual maturity at 5.5 to 6.5 years. A female can mate with several males, who compete over her. A male will seek out different females who are on heat. The mating season is in spring between March and May. Males and females usually associate for no more than 2-4 days. Gestation takes from 95-160 days In pregnant (bears 174 and 181) and pseudopregnant (bears 102, 98, and 14) females, T vs was maintained within the range of 37-38°C during the period from December to January. In pregnant bears, the existence of cubs was initially confirmed by daily checkups on 1 February in 2010 (bear 174) and on 1 February in 2012 (bear 181) As bears are induced ovulators, it thus may happen that the cubs of one litter have several fathers if the sow was intimate with more than one mate. GESTATION, BIRTH, & RAISING OF THE CUBS After mating in early summer, the female's fertilized egg begins to divide until it is a spherical sac—called a blastocyst—1 to 2 millimeters in diameter How long is the gestation period of a panda, and how big are they at birth? Panda gestation length ranges from 90 to 180 days, with an average pregnancy lasting 135 days. This wide variation in gestation occurs because the fertilized egg usually floats freely in the mother's uterus before it implants and begins developing

Black Bear Breeding Black Bear Reproduction

  1. Bear diets include berries, fruits, nuts, insects, roots, grasses, small rodents, bird eggs and carrion. Acorns comprise much of and are a significant food source in the late season diet of black bears in Tennessee. Bears, like many other wild animals, are opportunistic and look for effortless calories. They easily become habituated to human food
  2. Following the normal gestation period of seven months, the female bears a litter of one to three cubs. Reportedly remaining with her two to three years, these cubs often ride around on their mother's back. This article was most recently revised and updated by Amy Tikkanen, Corrections Manager
  3. In animals such as the rabbit or pig, which bear many young at a time, gestation is shorter for larger litters than for smaller ones. Heredity also influences gestation; in cattle the mean gestation period for Holstein-Friesians is 279 days; for Brown Swiss , 290 days; other breeds fall between these extremes
  4. Asian Black bear Reproduction. Mating can take place from mid June to mid August for the Asian Black Bears, with a gestation period of 200-240 days. They have the ability to delay the attachment of the embryo to the uterus so that they can give birth when it is right for them
  5. The gestation period lasts between 180 to 270 days. Cubs will continue to be nurtured by the mother till they are 2 to 4 years old. Like many mothers with cubs in the wild, mother bear is very protective of her cubs
  6. Asiatic Black Bear Reproduction and Life Cycles. Asiatic Black Bears are able to breed when they are between 4 and 5 years old and do so during the warmer summer months of June and July. After a gestation period that lasts from between 6 to 8 months, 1 to 4 cubs (although usually 2) are born between March and April in the safety and warmth of.
  7. In the wild, the cub-bearing period for female giant pandas lasts for around 10 years. Therefore, a female panda is able to bear four to six cubs in her life at most. Due to the low birth rate and vulnerability of cubs, it is little wonder that pandas are on the verge of extinction

Range gestation period 180 to 266 days; Range weaning age 18 to 30 months; Range time to independence 2 to 3 years; Range age at sexual or reproductive maturity (female) 4 to 6 years; Range age at sexual or reproductive maturity (male) 4 to 6 years; Young are born blind, helpless, and naked, weighing only 340 to 680 grams The gestation period for deers ranges from 181 - 290 days (depending on the species) counting from the first day of mating. They have a gestation period of 230 days. Breeds of Deer. The deer pregnancy calculator above can be used for the following breeds of deer Gestation Period of Fallow Deer. Fallow deer can be found in Asia, the United States (especially Texas), and Europe. The Fallow Deer doe's gestation period is between 230 and 245 days in length. List of Gestation Period of Different Deer Species. Below is a chart of showing these and other deer species and their gestation periods Ok so the way it's gonna work in v220 is that Mammals, upon Mating, the female then becomes pregnant and you have to wait a Gestation Period indicated via the HUD before she will give birth. During this period, her belly becomes larger and larger, and the female's Food consumption rate increases all the way up to double food consumption as the.

Woodchucks give birth from early April to mid-May following a 32-day gestation period. One litter contains four to six kits. The young open their eyes at four weeks and are weaned at six weeks, when they're ready to leave the burrow with their mother. In the fall the young woodchucks venture off to seek their own territories Location: Black Bear This shy, mid-sized bear has several color variations including chocolate brown, cinnamon brown, cream and blue. 35.632026984095, -79.760358575 Black bears, like brown and Asiatic black bears and many other carnivores, have a prolonged gestation period resulting from an arrest in embryonic development or delayed implantation. After mating, the fertilized egg develops into a minute ball of cells or blastocyst, at which time development stops and the blastocyst remains. Gestation Is the time from between mating and birth, you do not need to do anything special during this period and the animal can be used as per normal. Gestation cannot be paused except for fertilized eggs which can be picked up which will stop the gestation time. DomesticationCraftingOthe The gestation period is the period in which the fetus develops, starting from fertilization to birth. The gestation period varies from one species to another, depending on the extent of fetal growth and development before birth in the species. Smaller species tend to have shorter gestation periods compared to the larger ones

5 Stages of Activity and Hibernation - North American Bear

  1. The gestation period for a cow is about nine months long. A newborn calf's size can vary among breeds, but a typical calf typically weighs 25 to 45 kg (55 to 99 lb). Adult size and weight vary significantly among breeds and sex. Mammal. Gestation period (days) Alpaca. 335-366
  2. Following a 44-day gestation period, females bear litters of 4 to 5 young. The young are usually raised in tree dens and nursed by their mother for 5 to 7 weeks. Gray squirrels often bear a second litter in July or August. Small grays seen in autumn are from summer litters. Grays are gregarious and do not seem to demonstrate territoriality
  3. ant male. The fawn will develop fur in the womb and at the end of the gestation period both its head and front legs will be facing the rear of the womb in preparation for.
  4. The gestation period for whitetail deer is approximately seven months, and birth usually occurs during May and June. Whitetail does tend to have one, two or three fawns, and those does that are reproducing for the first time tend to have only one fawn
  5. Dealing with pregnancy and birth in hamsters can seem daunting - and rightfully so. That's why we've prepared this thorough guide for you, based on experience - as well as intensive research. In a nutshell: Pregnancy lasts for 16-17 days in Syrian hamsters. The female gives birth to 5-15 babies, known as hamster pups
  6. The gestation period of humans(266 days) is_____ percent longer than the gestation period of grizzly bears (220 days). A biologist studied the populations of black bear and brown bears over a 10-year period. The biologist modeled the populations, in thousands, with the following polynomials where x is time, in years. black bears: 2.3x^2 - 5.
  7. The gestation period of horses (336 days) is percent longer than the gestation period of bears (220 days). Answers: 1 Get Other questions on the subject: Mathematics. Mathematics, 21.06.2019 15:40, natalie4085. Use properties to rewrite the given equation. which equations have the same solution as 2.3p - 10.1 = 6.5p - 4 - 0.01p?.

The gestation period of different species. The gestation period in Whitetail deer. Whitetail deer are found in South America and Canada. They have antlers in males and their antlers are shed off and grow every year. The gestation period of this species is around 200 days as they mostly live in cold areas. They give birth to 1 to 3 fawns at a. Polar bears are usually polygynous, meaning that they will have more than one mate and it is possible for cubs to be born from different fathers. Because polar bears evolved from brown bears, they are able to mate with brown bears and produce fertile offspring. The gestation period is between 195 to 265 days Black bear cubs are born in the den in late January and weigh between 8 and 12 ounces. On average, two cubs are born, although three is not unusual. Newborn cubs are barely the size of squirrels, only about 1/300th to 1/500th the size of their mother The gestation period oscillates between 160 and 255 days, and a litter contains between one and three cubs. Bears generally give birth from September to February. Diet Spectacled bears have an omnivorous diet, although they are fairly specialized in fruit and different parts of several plants Sloth bears are solitary creatures and generally nocturnal. They grow up to 6 feet in length, and males can weigh up to 310 pounds, while females weigh up to 210 pounds. After a 6-7 month gestation period, Sloth bears normally give birth to a litter of two cubs in an underground den

Bear Reproduction - BearSmart

While pregnancy lasts approximately 220 days, embryonic development does not continue throughout the gestation period. In fact, bears possess a unique reproductive adaptation called delayed implantation that allows births to occur when females are generally in prime physical condition The gestation period (pregnancy length) is up to 250 days for black bears and the mother bear shows some remarkable behavior. The mother will typically give birth to the little cubs in late January. Because the cups are super small they are able to not wander off by themselves even though the mother is still hibernating Food can be scarce for polar bears in the Arctic summer. Some bears follow the ice - and seals onto the ocean, while others scavenge for eggs and other land-based food. Where polar bears are forced to spend the summer onshore due to lack of sea ice, pregnant polar bears may live off fat reserves for up to 9 months. Summer sea ice is disappearing Female sloth bears reproduce at different times of year based upon their location. Once they mate, their gestation period is nearly nine months long. The mother bear finds a cave or rock cavity to safely give birth, and most litters contain two or three cubs. The cubs will ride on their mother's back until they are about nine months old

The pandas reach sexual maturity at four years and have gestation period of 95 to 160 days. They give birth to one or two cubs weighing 90 to 130 grams (3-5 ounces). Artificial insemination efforts have been successful Spectacled bear (captive animal) Photo courtesy of HOTNStock. Andean (spectacled) bear (Tremarctos ornatus). OVERVIEW Andean bears are South America's only bear and are found in the Andean cloud forests at heights of up to 4,300 metres (14,000 feet) in Bolivia, Chile, Colombia, Ecuador and Peru. Largely but not exclusively vegetarian, bears will descend in search of food and have been. The gestation period of all mammals has two stages. If the male's sperm fertilizes one or more of the female's eggs, the fertilized egg divides several times but then stops when it is a spherical sac the size of a pinhead. Ocean Bay people had with bears, bear bones have been found in archaeological digs of sites dating from this time.

List of mammalian gestation durations - Wikipedi

Gestation Period. 7-8 months (delayed implantation) Litter Size. 1-5 (average 2) Social Aspects. Generally solitary except females with cubs. Status. Black bear are occasionally seen in forested areas of North Dakota. There is no known breeding population of bears in the state Reproduction: American Black Bears are solitary animals except for mothers with cubs, during the breeding season or when they come together at feeding sites. Solitary animals live alone. Black bears mate during the months of June and July. Cubs are born in January or February after a gestation period of 215 days Polar Bear Cub Size and Characteristics: Newborns are 30-35 centimeters long (12 to 14 inches) and weigh little more than half a kilogram (one pound). They are blind, toothless, and covered with short, soft fur. They are completely dependent on their mother for warmth and food. They grow rapidly on their mother's rich milk (31% fat), and. This delay followed by a 220-day gestation period allows women to give birth in hibernating winter burrows. Bears usually gain weight at the end of summer and fall while preparing to hibernate during the winter months from November to March. According to them, they feed for up to 20 hours and can burn up to 20,000 calories per day during this.

The gestation period for the brown bear varies from 180 to 266 days. The female Brown bear will nurse her cubs until they are 18-30 months old. They become independent when they are 2-3 years old. Brown bear fact # 6 - Communication Brown bears are equipped with an excellent sense of smell Average gestation period 220.0 days; Average gestation period 70 days AnAge; Range weaning age 6.0 to 8.0 months; Range age at sexual or reproductive maturity (female) 2.0 to 5.0 years; Range age at sexual or reproductive maturity (male) 2.0 to 5.0 years; Black bear cubs remain in the den with their sleeping mother and nurse throughout the winter This period of reduced activity occurs in all black bear populations. Winter lethargy is brought on by many factors, including reproductive status, food availability, amount of daylight, and temperature change. However, it is notable that bears in southern states den for shorter periods and sleep less deeply than bears in colder climates

Animal Gestation Period Chart That Will Leave You Stunned

Until recently, the polar bear's breeding season was generally thought to take place between early April and mid-May. Probably, a significant contributing factor to determining the mating period was that little hunting by Inuit, or field research by scientists, takes place between late May and the open water season in summer Gestation Periods Chart. by Vaughn Aubuchon: Here is a pregnancy period comparison chart of human babies, selected pets and other mammals.. - The length of a human pregnancy is usually referred to as 9 months for a baby, which is not completely accurate Cougars become sexually mature at about 24 months of age. However, sexually mature cougars seldom breed until they have established a home range. Cougars have a gestation period of approximately 92 days. They will generally give birth to between one and four kittens, although two or three is typical Based on relative brain size, I hypothesize that cave bears had a small birth and weaning weight but produced many cubs and had a prolonged gestation time, he said A cat's gestation period is roughly 10 weeks, or about 64 days. This gestation period is much shorter than humans, which means fetal development moves fast. Week One. Again, this is where the magic happens. Cats are highly fertile and if she has mated, even though you may not be able to tell for a couple of weeks, it is highly likely she is.

In early winter, the female gives birth after an approximate eight-month gestation period [source: Polar Bears International]. However, it only takes four months for the unborn cub to actually develop. During the first four months of pregnancy, the embryo is stagnant in the uterus while the mother gains the weight (about 450 pounds or 200. Question 1036068: You learn that the gestation period of humans(266 days) is what percent longer than the gestation period of grizzly bears(220 days). Answer by fractalier(6550) (Show Source) An American black bear is a top predator on the food chain. It's tropic level is a tertiary consumer. 600,000 American black bears live from Mexico to Canada (North America) and are very adaptable to their environment. However, the bear usually lives in forests or mountain regions because of the protection from humans and easy access to food. Answer to: Suppose the gestation period in Panda bears is Normally distributed with mean of 96 days and standard deviation of 4 days. For a.. This would suggest that bear cubs are born full term. With one exception. The giant panda cubs. Their bones resembled those of the puppy foetus, delivered several weeks before it was due, at around 70 percent of its gestation period. That would be like a 28-week human fetus, Smith said. (The human gestation period is 40 weeks.

The International Accounting Standards Board (IASB) has published 'Agriculture: Bearer Plants (Amendments to IAS 16 and IAS 41)'. The amendments bring bearer plants, which are used solely to grow produce, into the scope of IAS 16 so that they are accounted for in the same way as property, plant and equipment. The amendments are effective for annual periods beginning on or after 1 January 2016. Life cycle of the Koala. The breeding season for Koalas is approximately August to February. This is a time of increased amovement for Koalas, with sound levels increasing as males bellow more frequently. This is also when the young from the previous year leave their mothers and disperse. This period is the busiest for Koala carers, as suburban. Gestation period: Fetal development period from the time of conception until birth. For humans, the full gestation period is normally 9 months.. The word gestation comes from the Latin gestare meaning to carry or to bear DIET: Black Bears eat grass, plants, fruit, and sometimes small mammals, fish, insects, nuts, and honey. REPRODUCTION: Female black bears breed only every other year, with a gestation period of 60-70 days. They produce 2-3 cubs at a time (6 max) and mothers stay with their cubs only about 18 months after born Gestation is the period of time between conception/fertilization and birth. During this time, the baby grows and develops inside the mother's womb. Gestation means carrying, to carry or to bear. Gestation is the carrying of an embryo or foetus inside the female's womb in mammals and non-mammalian species

Grizzly Bear Facts, History, Useful Information andInformation on the Reproductive System of a Koala Bear

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The gestation period, or length of pregnancy, of the doe ranges between 145 to 152 days, or 150 days (5 months) on average, and under normal circumstances, the doe can have multiple births (twins, triplets and rarely, more). For more information on reproduction,. Gestation. The gorilla's gestation period is about 8.5 months. It is difficult to tell if a female gorilla is pregnant since her stomach is large to begin with (for food digestion). However, some females have swollen knuckles temporarily during pregnancy. Birth Seasons. Young are born throughout the year and usually at night. Frequency of Birt Pear trees generally need a dormant period during the cold winter months to blossom properly in the springtime. Depending on the cultivar, a pear tree needs between 200 and 1,000 chilling hours.