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  • Polar Bear Facts for Preschoolers

    We know that kids love to know about polar bears. They want to read polar bear books, watch animated movies in which polar bears play a leading role, and play with polar bear toys. That is why we have gathered fun facts about polar bears for preschoolers. Here kids are probably going to learn some of the basic facts about polar bears.

    Good Facts about Polar Bears

    • Polar bears are large-sized animals and they live in the Arctic.
    • Polar bears are mammals. Sometimes they are also called marine mammals because they spend most of their time in water.
    • They have pretty small eyes as compared to their bulky size.
    • Polar bears are also called ‘ice bears’, ‘arctic bears’, and ‘white bears’.
    • Since polar bears live in the North Pole they are called polar bears.
    • Polar bears make habitats on the sea ice.
    • They can survive extreme temperatures of minus 50 degree Celsius.
    • Polar bears eat meat only.
    • They are the largest bears in the world.
    • Polar bear cubs are nearly the size of a ground squirrel when they are born.

    Read More: Polar Bear Facts for First Graders

  • Polar Bears in Captivity

    Polar bears are one of the few wild animals that do not breed well in captivity in comparison to its natural habitat. They are not thought to be the ideal species to be raised as a captive animal. White bears do not only need proper diet but also appropriate environment. In fact they are more likely to rely on natural environment rather than food.

    Polar bears are highly adaptable to living in the frigid arctic habitat—something that they don’t often find in zoos. Scientists always believe that we should make efforts to preserve polar bear’s natural habitat instead of adopting one for zoos. Wild animals let alone polar bears are not meant to entertain people.

    polar bears in captivity

    Polar bears are aggressive not only in the wild but also in captivity. The captive bear is no less powerful than the one in the wild. The concept of keeping wild animals is not only bad for animals but also for humans. Many a times we have heard news about polar bears attacking people in zoos or in sanctuaries.

    polar bears in captivity
    A polar bear swimming in a Copenhagen Zoo. ©The Copenhagen Post

    In 1987 in the Prospect Park Zoo, Brooklyn two polar bears attacked 11-year-old boy and killed him on the spot. Later police officers shot both bears with 20 bullets. This indeed proves one thing that loss of one precious human life and two bears are primarily caused by raising animals in captivity. Essentially zoos bring wild animals and humans closer to each other which in turn render both people and polar bears redundant.

    Polar Bears in Captivity around the World

    1. Bronx Zoo, New York
    2. Dalian Forest Zoo, China
    3. Aquazoo Friesland, Netherlands
    4. Monde Sauvage”, Aywaille, Belgium
    5. Diergaarde Blijdorp Rotterdam, The Netherlands
    6. Nanjing Underwater World, China
    7. Tierpark Hagenbeck, Germany
    8. Wildlands, Emmen, Netherlands
    9. Wuppertal Zoo, Germany
    10. Wuhan Haichang Polar Ocean World, China
    11. Beijing Zoo, China
    12. Xi’an Qujian Polar Ocean Park, China
    13. ZOOM Erlebniswelt, Gelsenkirchen, Germany
    14. Highland Wildlife Park, Kincraig, Scotland
    15. Zoo Berlin, Germany
    16. Zoo Brno, Czech Republic
    17. Harbin Polarland
    18. Zoo Praha, Czech Republic
    19. Zoo am Meer Bremerhaven, Germany
  • How Polar Bears are affected by Global Warming?

    Polar bears are one of the few Arctic animals that rely on sea ice for their prey. As the Arctic sea ice melts the bear becomes redundant. This is probably the biggest threat to polar bears as it seems more likely than before that they are going to be extinct no later than 2060. The bizarre response of some of the countries regarding climate change is worsening polar bear’s prospects each passing day. The global warming is one of the vital reasons as to why the polar bear is in danger of extinction.

    Polar bears are not endangered they are threatened. Scientists hope that if we manage to stop the rate at which earth’s surface is warming we can surely restore the bear’s population as it was 100 years ago. If the ice stops melting the bear can hunt, eat, sleep (in dens) and find mate to reproduce. This will probably increase the chances of polar bear’s survival in the Arctic.

    While they are excellent swimmers bears can’t navigate the entire arctic in swimming. They must search for the sea ice or they die either of starvation or drowned.

    The climate change hit white bears the hardest as their only habitat is going to be vanished soon. According to the U.S. Fish and Wildlife Service “the single most important achievement for polar bear conservation is decisive action to address Arctic warming”.

    How Polar Bears are affected by Global Warming?

    Polar bears hunt seals on the sea ice. If there’s no ice there is no hunt. It is that simple. Rapid climate change causes the global average temperature to rise and as it turns out the Arctic ice declines ever than before. The report of National Oceanic and Atmospheric Administration (NOAA) shows that the air temperature at high altitude increases twice as fast as the temperature at the lower altitude. This is a major concern for us all. Let’s see in what ways polar bears are affected by climate change.

    Longer Summer shorter Winter

    The climate change has caused long summers and short winter. The rise in temperature has also led to incomplete refreeze in winter. Now polar bears must prey and learn how to survive on land. Furthermore they are going to spend more months in starvation. The International Union for the Conservation of Nature (IUCN) insists that the ice-free periods are going to spread the hunger among white bears. Furthermore they said that the climate change is pushing polar bears over a tipping point.

    The single most important achievement for polar bear conservation is decisive action to address Arctic warming.

    Since the year 1979 the arctic sea ice diminishes at a rate of 14% each year. The fourth lowest ice recorded in the year 2016.

    how polar bears are affected by global warming
    ©Science Illustrated

    Swim, Swim and…Swim!

    As the global climate gets warmer the Arctic glaciers and icebergs transform into water. Polar bears must swim greater distances in search of prey. While they are excellent swimmers bears can’t navigate the entire arctic in swimming. They must search for the sea ice or they die either of starvation or drowned. The more distance they cover in swimming the more fats they consume. Consequently bears let alone female bears lose weight and find it difficult to feed cubs.

    Habitat loss and Migration

    Over the past few decades polar bears have been forced to leave their original icy habitat. None of them ever live in Antarctica but scientists have spotted few individuals moving in Antarctica. This shows a significant change in polar bear’s behavior. Scientists maintain that climate change is probably the major cause of polar bear’s migration.

    Forced Creativity

    The arctic ice disappears and the prey becomes scarce. Polar bears must devise new hunting methods and food source on which they can survive. They are not adapted to warmer climate but they need to for it’ll become an inescapable necessity in the years to come. They must also learn to eat human rubbish, small animals and whale carcass which were never the part of polar bear’s diet.

    Is it a Myth?

    Few people believe that the endangerment of polar bears is highly exaggerated. They see an increase in population since 1960s when there was no legal restriction on hunting. However the truth is that the entire population is classified into 19 subpopulations many of which are thought to be declining. The population of Kane Basin and Baffin Bay are declining rapidly. Biologists fear that 80% of the current population soon fades away if the rate of global warming continues in a way it is.

    Good News!

    The southern Beaufort Sea population is known to be stabilized which is pretty good news. The numbers saw a rapid decline since the beginning of the 20th century. As of now the population is stable at 900.

  • How Much Does a Polar Bear Weigh? – Polar Bear Weight

    Polar bear weight varies with the season because of the availability of food sources. The adult males are generally heavier than adult females. Ursus maritimus are sexually dimorphic in fact one of the most dimorphic mammals in the marine world. Polar bear cubs weigh less than a kilogram but male cubs are greater than female cubs even at birth. Now let us study how much do polar bears weigh? 

    How Much Does a Polar Bear Weigh? – Polar Bear Weight

    A full grown polar bear weighs as much as 350–700 kg (772–1,543 lb) but the average weight measure around 385 to 410 kg (849 to 904 lb). Males attain this much weight when they are 10 years of age. Kodiak bears are slightly heavier than adult white bears.

    In the Beaufort Sea, males average 450 kg (992 lb) on maturity. They are nearly twice the weight of females. The heaviest male polar bear ever recorded was 1,002 kg (2,209 lb). The bear was shot in northern Alaska (Kotzebue Sound) in 1960.

    Read More: How Big is a Male Polar Bear?

    how much does a polar bear weigh?
    A mother bear is followed by her cubs. How much do polar bears weigh? Photo by: GUDKOV ANDREY/Shutterstock

    How Much Does a Female Polar Bear Weigh?

    The weight of an adult female is one half of the male’s body mass. Females weigh around 150– 250 kg (331–551 lb).The maximum reported weight in females is 260 kg (573 lb) but it is extremely rare. During pregnancy adult females put on too much weight almost equal to adult males’ mass. Females gain as much as 500 kg (1,102 lb) weight when they are pregnant.

    During pregnancy adult females put on too much weight almost equal to adult males’ mass. Females gain as much as 500 kg (1,102 lb) weight when they are pregnant.

    Females attain sexual maturity at 6 years of age. Soon after age they will put on much weight because of pregnancy. Extra weight is not because of cubs but due to the extra fats which she stored. She must store excess fats in order to spend days in the without eating. The female will come out of den in the spring season.

    How Much Does a Polar Bear Cub Weigh?

    Main Article: How Much Does a Baby Polar Bear Weigh?

    The polar bear cubs weigh 1 – 1.5 pounds (0.8 kilograms) at birth. Females are smaller and less heavy than males at birth. When the cubs reach 90 – 100 days age they leave the den. At this time they weigh up to 33 pounds (115 kg). A cub born in the Alaskan zoo averages 18 pounds (8 kg) and the bear was 90 days old.

    How Many Pounds Does a Polar Bear Weigh?

    Polar bears weigh around 772 to 1,543 pounds but most bears weigh less than 1,000 pounds. The heaviest polar bear ever recorded at the Guinness Book of World Records measured at 849 to 904 pounds. The average weight of a female polar bear in pounds is about 573 pounds.

    How Much Does a Polar Bear Weigh? – Video

  • Polar Bear vs Walrus

    While polar bear (Ursus maritimus) is a land-based marine mammal the walrus (Odobenus rosmarus) is a flippered aquatic mammal. The walrus is recognized by its prominent tusks like elephants’. White bears are the predators of walruses. However walrus is a big animal and only adult bears can afford to take down such a large prey. Sometimes young polar bears also get killed by the walrus.

    Polar Bear vs Walrus

    Adult walruses typically measure 2,000 kg (4,400 lb) in weight whereas male polar bears can weigh as much as 350 – 700 kilograms. The weight of the heaviest polar bear is reported at 1,000 kg. Clearly there is a significant difference in sizes of both marine animals. The biggest walrus is twice the size of the biggest polar bear. Despite the size difference polar bear preys on walrus and not the other way round.

    Where Do Polar Bears and Walruses Live?

    Polar bears and the walrus live in the Northern Hemisphere. They both have occupied much of the arctic including Atlantic Ocean.

    Polar Bear vs Walrus Hunting

    While polar bears have long been the victim by the indigenous people walrus isn’t safe either. Indigenous people kill walrus not only for its unique tusks but also for skin, meat, bone, and fat. In the 19th and 20th century people used walrus ivory and blubber to serve numerous purposes.

    Polar Bear vs Walrus Diet

    Unlike polar bears walruses have quite diverse diet. Walrus is thought to consume 60 genera of aquatic animals. Walrus eats shrimps, crabs, sea cucumbers, mollusks and many others. Both polar bears and walruses prey on ringed seals.

    Polar Bear vs Walrus Life history

    Walrus and polar bear seem to have a similar lifespan. Polar bears live around 15 – 25 years and walrus’ lifespan ranges from 20 – 30 years.

    Walrus attains the sexual maturity at 15 years age whereas polar bears become mature as early as in 4 – 5 years.

    Female polar bears and female walruses are called sow.

    Polar bear cub weighs only one kilogram at birth as against the walrus cub that weighs as much as 45 to 75 kg.

    While polar bears live alone, walrus breeds in colonies of tens of thousands of individuals.

    Population

    The overall global population of walrus is estimated at 200,000. Polar bears have a total population of about 25,000.

    Predators

    Polar bears have no natural predator in the arctic. Walrus has two potential predators; one is polar bear and the other is a killer whale.

  • Polar Bear Taxonomy

    People living in the Arctic rarely call polar bears polar bears. They will call polar bears with many different names. Prominent among the names are white bear, nanook, eisbar, nanuq, sea bear, and ice bear. Not only do the Arctic people call white bears with several names scientists also could not agree on a single scientific name.

    Polar bear taxonomy

    Constantine J. Phipps in 1774 was the first one to give polar bears a scientific name Ursus maritimus. Two years later Pallas came up with his scientific name Ursus marinus. Similarly Knotterus-Meyer (1908) suggested Thallassarctos eogroenlandicus; Shaw proposed Ursus Polaris, and Erdbrink together with Thenius described the polar bears in 1953 Ursus (Thalarctos) maritimus. This is probably due to the inbreeding that occurred between grizzlies and white bears.

    Björn Olof Lennartson Kurtén, a Finnish vertebrate paleontologist, analyzed the bear fossils in 1964 which suggested that white bears likely to have originated from brown bears. It goes back to the mid-Pleistocene period in Siberia. Kurten concluded that the overall population of polar bears represents a single species and it doesn’t matter how far they live from one another. That is to say there seems to be no subspecies of white bears. However in his later explanations and examinations of fossil evidences Kurte believed that polar bear had one subspecies that might have lived in the Pleistocene period. He suggested a name Ursus maritimus tyrannus for the subspecies and said that it was far bigger than the present-day polar bear.

    Scientists followed Kurte didn’t seem to agree with his new findings of a subspecies. Thus they promoted the name Ursus maritimus. Wilson, Manning, and Harington were amongst the chief scientists. The most recent fossils belonged to 130,000 to 110,000-year-old. It was discovered in 2004 in Charles Foreland. This was a remarkable discovery because it helped scientists to understand that polar bear molar teeth underwent major change from brown bear teeth around 10,000 – 10,000 years ago.

  • Top 59 Questions about Polar Bears | Polar Bear FAQs

    Here are the most frequently asked questions about polar bears. Over the past few decades polar bears have become the subject of research for many scientists. While most scientists discuss polar bears in respect of global warming others seem to be interested in the biology and behavioral psychology of polar bears.

    How Do Polar Bears Eat?

    Main Article: How Much Do Polar Bears Eat?

    Adult polar bears start eating the seals blubber first because it gives them what they want that is fats. Young polar bears however consume meat because they need protein in their diet more than the fats.

    What Colors are Polar Bears?

    Main Article: What Color are Polar Bears?

    While polar bears seem white in color they are truly black within inside. The skin is absolutely black whereas the polar bear hairs are transparent. They just appear to be white.

    What Do Polar Bears Need to Survive?

    Main Article: What Do Polar Bears Eat?

    Polar bears for the most part of their lives need fats to survive in the frigid arctic habitat. They get fats from seals let alone ringed seals. They also need icy cold habitat where ice floes move over water. White bears hunt seals while standing on ice floes.

    Do Polar Bears Eat Seals?

    Yes they definitely do! As a matter of fact seals are the most favorite diet of polar bears. For polar bears seals are the most nutritious meal and there can be no replacement ever for it. They are most likely to prey on ringed seals and less likely on bearded seals.

    Can Polar Bears Live in Warm Weather?/Can Polar Bears Survive in the Heat?

    Main Article: How Do Polar Bears Adapt to their Environment?

    Polar bears cannot live in warm weather for they may die in the heat within few hours. Even in the freezing temperature of the arctic polar bears get overheated when they run. That is one reason why polar bears silently approach their prey instead of charging it.

    Where Can you find Polar Bears?

    You can find polar bears in five different countries that are adjacent to Arctic Circle. These countries are Denmark (Greenland), Norway, Canada (Svalbard), United States (Alaska), and Russia.

    Where Do you See Polar Bears in Alaska?

    In Alaska polar bears are most likely to be seen in Barter Island especially during the ice-free summer months. There are communities that arrange trips for people to go and watch Arctic’s deadliest predator. Northern Alaska Tour Company (NATC) is one of them that design a Polar Bear Expedition each year.



    Do Polar Bears Live in the Antarctic?

    No! Polar bears do not live in the Antarctic. Antarctic is the place of penguins which lies at the South Pole whereas polar bears live in the Northern Hemisphere—both are opposite ends of the pole.

    Why Don’t Polar Bears Live in the Antarctic?

    Polar bears have never lived in the Antarctic probably because they have evolved to occupy a specialized ecological niche in the arctic. Besides, they have evolved from brown bears that also live in Alaska. Hence there is no chance that polar bears would ever find their way to the Antarctic.

    Why Don’t Polar Bears Feet get Freeze?

    Polar bears feet do not get freeze even when the temperature drops down to negative 50 degree centigrade. They are covered with dense hairs which serve as insulators and prevent the feet from freezing.

    How Big is the Biggest Polar Bear?

    The biggest polar bear weighed as much as 1,002 kg (2,209 lb) and it stood 3.39 m (11 ft 1 in) on its rear legs. The shoulder height measured at 122 to 160 cm (4 ft 0 in to 5 ft 3 in). The specimen shot in the northwestern Alaska in 1960. The biggest polar bear was a male.

    What Do Polar Bears Do?

    Polar bears hunt for seals in the early winter, smell their mating partner during breeding season, enters into dormancy in early spring, and play-fight.

    Habitat of Polar Bear and Penguin?

    The polar bear’s habitat is sea ice and water. The bear spends most of her time in swimming. Penguins also share the same habitat characteristics in that they live in water as well as on the sea ice.

    Do Polar Bears live in the North Pole?

    Yes, polar bears live in the North Pole.  Arctic lies at the North Pole and so as polar bears.

    Do Polar Bears live in the South Pole?

    No, polar bears do not live in the South Pole. Penguins live in the South Pole. Polar bears and penguins cannot meet for they inhabit the opposite ends of the pole.

    Can Polar Bears Climb?

    Polar bears can climb up the hill or small mountains but they cannot climb up the trees. They climb in the warmer months when the primary prey (seals) is scarce. Polar bears mostly climb up the hill to search birds or birds’ eggs. Over the past recent years they have adapted to eating geese eggs.

    How Big Do Polar Bears Get?/How Tall Can a Polar Bear Get?

    Polar bears are quite bulky in that they weigh as much as 700 – 800 kilograms. An adult polar bear might be equal to three average-sized Siberian tigers. They can reach the height of about 5 – 6 feet while standing on her hindlegs.

    How Do Polar Bears Survive?

    Polar bears eat a lot of seals in early spring. The pregnant females prey on ringed seals as many as she possibly can for she becomes dormant in the next 3 – 4 months. During dormancy polar bears consume available fats which they stored earlier. That is how polar bears survive the fasting months of the arctic.



    Can Baby Polar Bears Swim?

    Not exactly in a way adult bears swim but yes they probably can! However baby bears get too tired while swimming and as it turns out they mount on the mother’s back and enjoys the rest of the journey. Besides, mother bear rarely allows her cubs to swim longer than usual.

    Do Polar Bears Drink Sea Water?

    Not really! Polar bears get water by eating seal blubber. They don’t need to drink sea water for their survival.

    Do Polar Bears Eat Meat?

    Yes, in fact the polar bear is the most carnivorous of all bears. Ice bears rely almost entirely on meat for their consumption. They eat seals and whale carcasses all day long. Sometimes only sometimes they eat green matter.

    How Many Polar Bears are Left?

    While the exact count of polar bears population is not known the estimated global numbers are thought to be around 21,000 – 25,000 bears. These figures do not reflect on the polar bears inhabiting Russia. Thus the numbers are believed to be understated. Scientists maintain that there might be as many as 40,000 polar bears living in the world.

    Do Polar Bears Eat other Polar Bears?

    Yes, polar bears do eat other polar bears but only sometimes. This is known as cannibalism in which the animal eats her own kind. Male polar bears often kill and (sometimes) eat polar bear cubs when they are extremely hungry.

    How Long does a Polar Bear Feed its Young Milk?

    Polar bear mother is highly devoted mother unlike most other land carnivores. She will milk her cubs for as long as 1.5 – 2.0 years. The young bear remains with their mother until they reach 2 years age.

    What Do Newborn Cubs Look Like?

    A newborn cub is nearly the size of a squirrel. It hardly weighs one kilogram at birth. The polar bear cubs are born blind, hairless, and toothless. They grow very quickly and gain weight in the next few days.

    How often does a Polar Bear have Babies?

    Polar bears birth interval is 3 years. This is because of the prolonged lactation period. The mother feeds her young for two years and a year later she is ready to mate again. The female bear gives birth to twins but three is also not uncommon.

    Where Do Polar Bears Sleep?

    Polar bears make dens where they can sleep and relax. They make dens on the ice floes as well as on land. Polar bears find best location to make dens—a place where the density of snow is the greatest to cover the den. The female bears enter into deep sleep (sort of hibernation) in dens. The dens are also called maternity dens because the mother raises her cubs inside the den.

    How Polar Bears are affected by Global Warming?

    Over the last hundred years the global surface temperature has increased by 1.6 degree centigrade. This causes the Arctic sea ice to melt quickly than ever. The sea ice is the essential characteristic of a polar bear’s habitat. As it turns out the global climate change has rendered many of the white bears redundant.

    How aggressive is a Polar Bear?

    Polar bears are quite aggressive but they are not as aggressive as they’re sometimes portrayed. Only a hungry polar bear is likely to attack humans that live within the bear’s territory otherwise they avoid fighting or getting in confrontations with humans. Nonetheless, during ice-free season polar bears may look at humans as a potential food source.

    What are the Threats to the Polar Bears?

    Polar bears are not only facing habitat loss but they are also hunted in large numbers every year. The indigenous people are allowed to kill 50 – 60 polar bears each year because their living depends on it. Except in the United States, no serious protection is given and polar bears are quite threatened in much of their range.

    What is a Polar Bear’s Diet?

    Polar bear’s primary diet consists of ringed seals and bearded seals whereas harp seals, whale carcasses, walruses, birds, and geese eggs make up the secondary diet of a bear.

    How Many Polar Bears are Killed Every Year?

    Researchers estimate that every year around 50 – 60 polar bears are shot. Not only do the indigenous people but also the professional hunters illegally kill polar bears.

    Why is it Important to Save the Polar Bear?

    Polar bears are apex predators of the Arctic’s ecological niche. They sit at the top of the food chain throughout the North Pole. Polar bear extinction means the population explosion of many marine mammals inhabiting the arctic.

    Why are the Polar Bears going Extinct?

    First of all polar bears are not going extinct near future. Secondly possible causes of their endangerment are massive hunting, climate change, habitat loss, and starvation. Scientists blame global warming for the probable decline in polar bear population.

    What is the Habitat of a Polar Bear?

    Polar bear’s habitat consists of sea ice including ice floes that move with the seasons as well as icy cold water. They prefer to make homes in the greatest density of snow so that the dens are completed covered and safe.

    Why Do Polar Bears Need the Ice?

    Polar bears need the ice for two reasons: first they need ice to hunt seals secondly polar bears make dens on the ice floes. During summer months polar bears neither make dens on the snow nor do they hunt seals. Ice is probably the most essential characteristic of polar bear habitat.

    How Polar Bears have adapted to their Environment?

    Over the past few years polar bears have adapted to living in the Arctic tundra and relying on animals other than seals. When seals are not available (during ice-free months) the bear resorts to eating birds, small land mammals, and whale or dolphin carcasses. It seems like polar bears are aware of their diet limitation and the fact that their survival is associated with the adaptability.

    Can Polar Bears Swim Well?

    Polar bears are outstanding swimmers for they can swim for days without relaxing. Unlike any other bear the polar bear spends most of her time in water. That is why ice bear is also called marine mammal.

    What is the Adaptation of a Polar Bear?

    The adaptation of a polar bear includes the bear sight, hearing, smell, teeth, and skull. The ability to camouflage and swimming are yet other adaptations that make polar bears stand out among the rest.

    How Much Do Polar Bears Eat a Day?

    During spring season polar bears can eat up to 40 – 50 kilograms of meat every day. It occurs when the bear finds her primary prey that is ringed seals.

    Do Polar Bears like the Cold?

    Polar bears do not only like the cold they also need it. They cannot survive the heat for the animal is protected by dense hair or fur.

    What is the Ecological Niche of the Polar Bear?

    Polar bears always speak high of their strength and ability to prey just about anything in the arctic. They are the apex predators in that they dominate their ecological niche. Many arctic mammals fall prey to polar bears; from a vulnerable prey such as ringed seal to as large as walrus or beluga whale.

    Do Polar Bears have Thick Fur Coats?

    Polar bears have extremely thick fur and the frequency of their furs is the highest when they reach adulthood. Ice bears are protected with two layers of fur: one is the external guard hair and the other is dense underfur. The guard hair measures 5 – 15 cm.

    Are Polar Bears Omnivores?

    Polar bears are almost exclusively carnivores. They are the most carnivorous bear species. However polar bears do sometimes consume grass especially after mating. This can possibly make polar bears omnivorous but they are carnivorous omnivorous.

    How Long Can a Polar Bear Live up to?

    Polar bears have a lifespan of about 15 – 25 years but they can live up to 35 years in captivity. The lifespan of a bear mainly depends on her habitat and diet. The greater is the habitat loss the lesser is the polar bear lifespan.

    How does a Polar Bear Camouflage?

    Polar bears get easily lost in the snowy white background of the arctic ice. Seals do not have good eyesight and it becomes harder for them to spot white bears because the white color of the animal blends with the external environment. Besides, polar bears also disappear when someone takes shot from the sky. Biologists cannot spot polar bears when they view animal from above.

    What Color is a Polar Bear’s Skin and Fur?

    The polar bears skin is absolutely black in color whereas the fur is crystal clear. Neither of these is white in color.

    What makes a Polar Bear White?

    Polar bear’s fur makes the bear white. The bear’s fur lacks pigment. As a result the hairs are colorless. They do however reflect the snow white color of the ice. This indeed makes a polar bear white.

    Why Do Polar Bears have Black Skin?

    The black color does not reflect the wavelength of light. It absorbs light. Polar bears have black skin color because it keeps the bear warm in the freezing arctic tundra.

    Why Do Polar Bears have Hollow Hair?

    Polar bear hairs are hollow because it camouflages the animal and protects her from any potential threat. The hair reflects the white color of the snow which is why the bear appears white. During sunset however the polar bear looks yellowish orange for it reflects the sunlight.

    What is a Baby Polar Bear Called?

    The baby polar bear is called a cub. The polar bear cub grows very quickly in the first couple of weeks.

    How Long does it take for a Polar Bear to be Fully Grown?

    Polar bears are nearly the size of a squirrel at birth but they grow quickly within few weeks. However white bears attain their maximum weight and height at the age of 2 years. They become fully grown at 2 years age.

    How Do Polar Bears Protect themselves from Predators?

    While polar bears do not appear to have any natural predators in the arctic they do nevertheless protect themselves against possible threats. Polar bears not only camouflage but they also go into their dens to prevent cubs from predators.

    Do Polar Bears Cover their Noses when they Hunt?

    There is no scientific argument that explains why polar bears cover their noses (if at all) when they hunt. Polar bears never show behavior such as this. People might have observed bears covering their noses but scientists reject any such notion.

    Why Do Polar Bears live in the Arctic Circle?

    Polar bears have occupied the arctic habitat since centuries. The bear has long adapted to living in the arctic ecosystem. They have evolved in the Northern Hemisphere and the entire North Pole provides the ideal setting for the polar bear’s habitat.

    Where Do You Find Polar Bears in Canada?

    Polar bears are thought to occupy as much as 3.1 million square kilometers of area in Canada alone. The total population of the Canadian polar bears is estimated at 12,700. In Canada polar bears are found in James Bay, western and southern Hudson Bay, Newfoundland, and Southern Beaufort, and Labrador.

    Why Don’t Polar Bears Catch Seals in the summer?

    Polar bears hunt seals while standing on the large chunks of ice. During summer the ice floes break forcing bears to rely on land animals. In this way polar bears resort to hunting some alternative prey instead of seals. They cannot eat seals in warmer months.

    Are Polar Bears Nocturnal?

    Polar bear are crepuscular animals in that they remain active all day and night. The arctic tundra remains in darkness for as long as 3 – 4 months. If the bear adopts a diurnal lifestyle then she probably starves during these months. Similarly if she becomes nocturnal when the sun dominates the bear becomes helpless. Thus it is clear that polar bears must adapt to learn diurnal as well nocturnal lifestyle in the arctic tundra.

    What are some animals that live with polar bears?

    Polar bears share their frozen habitat with many other animals such as ringed seals, bearded seals, arctic foxes, arctic wolves, walrus, muskox, arctic tern, arctic skua, arctic hare, Greenland shark, killer whale, beluga whale, narwhal, sea otter, snow geese, and puffins.

  • Polar Bear Predator Prey Relationship

    Polar bears are the Arctic’s land-based predators. They have a wide range of preys. While the primary prey is limited to seals the secondary prey is varied. The polar bear’s varied diet is primarily due to the bear’s opportunistic nature because it loves to eat just about any animal—medium to large sized mammals as well as birds.

    Polar Bear Predator Prey Relationship with Seals

    Polar bears seem to show very strong relationship with seals. Favorite among the seals is the ringed seal but they also consume bearded seals. Seals provide them blubber and fats which the bear ultimately requires for living in the freezing habitat. The entire population of polar bears requires as much as one million seals in just a period of one year. This shows the powerful predator-prey relationship of polar bear with seals. Harp seals and hooded seals are also consumed but not preferred.

    Polar Bear Predator Prey Relationship with Walruses

    Walruses are huge mammals and an adult walrus may weigh as much as 2,000 kilograms. Polar bears do have predator-prey relationship with walruses but the link doesn’t appear to be as strong as that in seals. Adult walruses are so large that even the largest polar bear would prefer to hunt young walrus. Besides, they live in large colonies making it quite difficult for the bear to spot one in thousand.

    Polar Bear Predator Prey Relationship with Birds

    Read More: Do Polar Bears Eat Birds?

    Lately birds have never been the significant prey for polar bears except in the past few decades. This is probably due to the rise in global average temperature of the earth’s surface. The sea ice melts earlier each year—forcing bears to rely an alternate prey. Summers become longer than winter. As it turns out polar bears have started eating birds. The predator prey relationship between polar bears and birds is the most recent one according to scientists.

  • Polar Bear Life Cycle | Life Cycle of a Polar Bear from Birth to Death

    A life cycle involves several phases that come into the life of every living organism. The life cycle of a polar bear involves five stages. The initial stages are quite critical since bears are more likely to be vulnerable than the advanced phases. The bear has a complicated life cycle and scientists faced extreme difficulty in studying it because one-third of the females return to their den during breeding months. They will continue to care for their young in the first two to three years after birth. It’s time to know what is the life cycle of a polar bear.

    Polar Bear Life Cycle

    Birth

    The polar bear gives birth during spring season and the baby polar bears are called cubs. Normally twins are born but three are also not uncommon. Cubs are born helpless without hair, without teeth, and without sight. As a matter of fact they are not insulated with dense hair. They are deaf with nearly the size of a chipmunk. The birth occurs in between October and January.

    First Two Years

    The first year of a polar bear cub is thought to be the most important time not only for the cub but also for its mother. The mother bear needs to look after her cub almost all the time and she barely leaves it unattended. Whenever she goes out to hunt she takes cub along with her (not for training though). When the cub gets tired it just mounts on the mother’s back especially during swimming. The mother bear rarely allows her cub to swim because her insulating fur is not properly developed at this stage.

    Adolescence

    When cubs emerge from the den they are able to walk on their own but remain under the watchful eye of their mother. But they will spend months in playing, fighting, and running around the corner until they reach 2 years age. Breast feeding occurs at this stage as cubs enjoy calorie-rich milk. This is the end of a second phase for polar bear.

    At this phase polar bears become 3 years of age. They can now eat solid food and look for their mother’s hunting methods. However cubs will continue to rely on their mother for feeding. Once they are done eating food, cubs will return to the den.

    Adulthood

    During adulthood phase the polar bears learn how to survive the hostile arctic environment where food is not easily accessible. Ice bears are solitary creatures and they must now swim, play, hunt, and walk alone after reaching adulthood. Polar bears are sexually dimorphic animals. Males are significantly greater and heavier than females. Adult bears will often fight other bears and are capable to run as fast as 40 km/h only in short bursts. After eating seals, their muzzle becomes all red due to seal’s blood which is why they dive into the water and swim for about 15 – 20 minutes to clean them up.

    Mating

    At this stage adult bears go and find their mating partner in suitable breeding months. Polar bears become sexually mature at 5 years age. Once they achieve the reproductive age the males begin to look for the females by following her tracks. White bears mate in April or May. If there are two males for one female then both (males) will probably fight to win over the female. Mature males will fight hard but not hard enough to kill each other. The fight may end up in broken bones or jaws. The loser is likely to run away while the dominant male mates.

    If there are two males for one female then both (males) will probably fight to win over the female.

    Male bears, just like other mammals, mount the female from behind. However the ovulation doesn’t begin immediately. Many attempts occur before the egg is finally fertilized. Once pregnant the female is going to eat a lot just to make sure she stores enough fat for winter.

    Death

    Polar bears deaths are caused by numerous ways such as disease, accidents, climate change, and hunting. The Inuit (local hunters) have long hunted ice bears for centuries. Many bears couldn’t reach the adulthood primarily because other polar bears kill them or even eat them. Studies confirm the cannibalism behavior in polar bears. Prominent among the causes is human hunting which has threatened few polar bear population. Apart from human hunting the polar bear death is also caused by eating contaminated foods which occur due to the water pollution.

    Polar Bear Life Cycle – Polar Bear Birth Video

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  • Polar Bear is the Largest Carnivore – Is the Polar Bear the Largest Bear?

    Polar bear (Ursus maritimus) is the largest carnivorous land mammal living today. The only other bear nearly the size of polar bear is her close relative Kodiak brown bear. Scientists aren’t sure which one is bigger. Biologists also refer polar bear as a marine mammal because the bear spends so much of its time in water. Polar bears love to swim and they are outstanding swimmers. Unlike any other bear species, arctic bears can swim for days without stopping. In this article we are going to compare the polar bear’s size with some of the largest land mammals such as Siberian tiger and Kodiak brown bear.

    Polar Bear is the Largest Carnivorous Mammal

    Siberian tigers are some of the biggest carnivores with the maximum weight of about 465 kilograms. Yet another terrestrial species is Kodiak brown bear that weighs up to 751 kilograms. Siberian tigers and Kodiak bears are one of the largest mammals in the animal kingdom but polar bear exceeds all of them in weight. The largest male polar bear weighs as much as 1,002 kg (2,209 lb) kilograms which qualify it as the largest terrestrial land mammal.

    Tallest Mammal

    The large Kodiak Brown reaches the height of about 9 ft 8 in. whereas polar bears can have the height of about 11 ft 1 in. A male Siberian tiger is 11 feet tall. The maximum shoulder height of adult polar bears is 5 ft 3 in while Siberian tigers are only 50 inches in shoulder height. The Kodiak bears are extremely close to the polar bear’s height at about 4.9 feet at the shoulder.

    polar bear is the largest carnivorous land mammal
    An adult male polar bear is twice the size of an adult female polar bear. Polar bear is the largest carnivorous land mammal. Photo by Natural Habitat Adventures

    Polar Bears are Extraordinarily Powerful

    Unlike any other terrestrial carnivorans polar bears are super powerful. The polar bear’s skull and neck are strong enough to pull 600 pounds prey out of water. This implies that icy bears are so much muscular that they are able drag the prey nearly the size of their own. No other mammal—not even the Siberian tiger or Kodiak brown bears are comparable in strength to the polar bear’s powerful neck. Although the brown bear’s skull is greater than that of polar bear’s yet the latter possess narrower skull because it allows her to reach the prey hidden into the sea ice.

    Polar Bears possess Strongest Claws

    Kodiak brown bears are quite closer to polar bears in strength but they are overshadowed by the arctic bears in terms of claws’ strength. Polar bears have arguably the strongest claws which are stronger than the Kodiak bears and heavier than the black bears.

    Polar Bear is teh