0
around 6.5 months After a successful mating, there is delayed implantation of about 6 months. The female has about 2 months to put on 440 lbs. of blubber before entering her maternity den. Gestation Embryonic growth is about 2 months but gestation is 240-270 due to delayed implantation. the average weight of a pregnant polar bear is 650 pounds to 730 pounds
The gestation period (time of pregnancy) for a bear is 180-270 days.
The exact/accurate gestation period is not known but it is around 8 months. Each litter has 2 cubs and sometimes even 3. Cubs weigh around 10 to 15 kilograms (22 to 33 pounds) at birth. Cubs stay with the mother for around 2 to 3 years of their life and then go away.
After mating there is a delayed growth period of about four months. This "delayed implantation" allows the mother time to acquire her full birthing weight, almost an additional 450 pounds on average, and then give birth during the best time of year for the cubs survival. The actual period for "embryonic development" is about four months. So, the total time from mating, and fertilization, to birth is right at eight months. For more details, see sites listed below.
Polar bears breed in the spring and early summer which results in a fertilized egg (zygote) which floats free in the uterus until fall. At that time if the mother has adequate resources to carry the cub(s) to term, the egg will implant (aka delayed implantation). This implanted egg develops rapdily into a cub which is born around the first of the year, at least in Alaska resulting in an actual developmental period of 3-4 months in the womb. Mothers give birth from 1-4 cubs, the average being a bit more than 2. Singletons are common, triplets rare and quadruplets exceedingly rare, only having been reported in the literature a time or two. Newborn cubs wight 1-2 kg at birth; they eyes are closed and hearing not yet functional. They nurse for another 2 months until the mother breaks out of the den. After den breakout, cubs and mothers may remain at the den site anywhere from hours to weeks. The longest reported time post-breakout is 26 days before abandoning.
The exact/accurate gestation period is not known but it is around 8 months. Each litter has 2 cubs and sometimes even 3. Cubs weigh around 10 to 15 kilograms (22 to 33 pounds) at birth. Cubs stay with the mother for around 2 to 3 years of their life and then go away.
Polar bears have a gestation period of six months. Black bears have a 255 day gestation period but only the last 55-60 days are really a pregnancy. Bears have a delayed implantation period so bears can mate at various times but the female only gets pregnant if she develops enough weight to successfully carry the babies.
The Polar Bear Gestation Period varies considerably between 190 and 260 days.
The gestation of a grizzly bear, a subspecies of the brown bear, is approximately 220 days.
Add your answer:
Earn +20 pts
How long is the gestation period for the babies of a polar bear?
The gestation period (time of pregnancy) for a bear is 180-270 days.
Gestation period of a bear?
Grizzly bear 225 days. Polar bear 240 days.
What is the polar bear's incubation period?
Polar bears do not have an "incubation" period. That is for animals that lay eggs, not give birth to live young. A polar bear as a gestation period, which is around 8 months or 240 days long.
How long is the gestation period for a grizzy bear?
The gestation period (time of pregnancy) for a bear is 180-270 days.
How long is a sun bear's gestation period?
The gestation period (time of pregnancy) for a bear is 180-270 days.
How long does it take for a polar bear to have a baby?
Females reach sexual maturity at around 4 to 5 years of age, while males do so at around 6 years of age. Polar Bear Courtship & Mating usually takes place between April and May. Males locate receptive females through scent and the mating occurs over a period of a few days. After mating, the male and female go their separate ways. Cubs are born between November and February. The exact/accurate gestation period is not known but it is around 8 months.
How long is the gestation period for animals in months?
The gestation period for each animal is different. For example Elephants have a gestation period of 22 months where as polar bears one of only 8 months.
How long after mating are polar bears born?
The gestation period for polar bears is 8 months.
How long is a Grizzly bear?
The gestation period is actually around 6 months
How long are polar baers pregnant?
Once the gestation period starts, it is about 8 months.
How long is a p lal bear pregnant?
The gestation period (time of pregnancy) for a bear is 180-270 days.
How long do teddy bear hamster last pregnant?
16 days is the gestation period of the Syrian hamster (teddy bear)
