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Polar Bears
Known scientifically as Ursus Maritimus, the polar bear is native to the Arctic Circle, and is the world's largest carnivore species found on land. It is classified as a vulnerable species, with 5 of the`9 polar bear subpopulations in decline. They have a reputation as the only animal that actively hunts humans, but in fact, anything they encounter is potential prey.
1,835 Questions
Why are polar bear's homes melting?
Polars bears homes are melting mainly because of global warming. The toxic wastes that cars and factories make, makes an attraction to the sun which slowly heats up the earth. This is bad because glaciers cool the atmosphere and if there are no glaciers, the planet will slowly heat up to a degree that nothing would be able to live in (including humans).
Its hard to say - not many people know. Adult polar bears get up to 10feet (3 metres) tall if that helps
Each polar bear litter has 2 cubs and sometimes even 3 cubs. Cubs weigh around 10 to 15 kilograms (22 to 33 pounds) at birth. Size wise, the cubs are only a feet or so in length. They are totally helpless/defenseless at birth and depend entirely on their mother for food and protection. Cubs stay with the mother for around 2 to 3 years of their life and then go away.
How are Polar Bears kept in zoos?
There should be no reason to capture them for zoos. There are plenty in zoos that can be used to breed specimens for zoos. Let the wild ones roam free!
What animal has the thickest fur polar bear or sea otter?
by far polar bear because the live in much colder weather then sea otter
What are threats to survive for polar bears?
Polar Bears are very vulnerable to climate change and human hunting. Due to their sheer size, they have no natural predators except themselves. Large males have been known to kill off younger/smaller bears to cut out on competition. Man has been hunting these giant carnivores for centuries for its skin and fur. As of now, approximately 20000 to 25000 animals exist in the Arctic wilderness. Their numbers are steadily declining due to habitat loss and hunting. Oil and Gas exploration in the Arctic too is a significant cause for the decline in Polar Bear numbers. Due to human activity and global warming, the ice caps are melting. So, the effective land that the bears have for hunting is coming down. Pollution too is killing off prey species. So, everything put together is endangering the species.
What is inside a polar bears ears and tail?
Well a bear bear, as opposed to a, say, teddy bear, has many more individual things inside of it. For instance, the inside of a bear bear contains organs while a common teddy bear usually only contains a single type of stuffing.
Some stuffing a teddy bear would have inside of itself is wool wool. (No joke, The actual name is [wool]x2. It is also known as excelsior) Another material inside of a teddy bear is kapoka which is a silky, fluffy fiber taken from the seed pods of the Ceiba tree. The most common stuff inside of a teddy bear is polyester. It is Inexpensive, easy to use, and available everywhere. Other very uncommon stuffings are wool, corn, and bamboo. Some posable bears contain glass or plastic pellets. It could also contain Metal electronic devices that make sounds or magnets.
The inside of a bear bear could be very similar to what is inside of you right now. Bear bears could contain any one of those objects that could be found inside of a teddy bear. In addition, they contain a skeletal system. Their skeletal system contains about 360+ bones. This includes major bones such as the cranium and bones that you have probably never heard of before such as the ol ecranon process. A bear bear also has a very strong muscular system that aids their skeletal system inside of them. Other major things inside of a bear bear are it's organs. Many organs that are inside of you are also inside of a bear bear, such as the brain, lungs, stomach, gall bladder, intestines, liver, heart, pancreas, kidneys, and trachea.
A bear bear could also contain many other objects. These are usually unexpected objects found inside of a bear bear because the bear bear thought that it was something edible. A few foreign objects that could be found in a bear bear are cellphones, Plastic items, and teddy bears.
How tall can a female polar bear grow?
The polar bear is the largest carnivore on the earth. Adult males weigh between 350 to 680 kilograms (770 to 1500 pounds). They can measure between 2.4 to 3 meters in length (7.9 to 9.8 feet). Females are comparatively smaller and weigh around 150 to 250 kilograms (330 to 550 pounds) and measure 1.8 to 2.4 meters (5.9 to 7.9 feet) in length.
What do polar bears spend most of their time doing?
They spend most of their time eating the seals and especially the seal fat. They prey on both the bearded and ringed seals.
How much does a polar bear eatsin one day?
Polar Bear do not typically eat fish. Their diet consists mainly of seals, but they will resort to eating fish if no seals are available. Polar bears need to consume nearly four and a half pounds of fat daily to survive.
How do polar bears feed their cubs?
The female polar bear lives with her cubs for more than two years.
By that time they are weaned and have learned how to hunt and look after themselves.
The male polar bear does not live with them. In fact, male polar bears have been known to kill cubs.
How many species live in the polar region?
Polar bears are in the phylum Chordata, which contains 2 species.
What mechanism explains why polar bears are white and bears found farther south have a darker color?
Since Polar bears live in arctic climates surrounded by ice and snow, over the years white fur was naturally selected in their population as a dominant trait that gave a competitive advantage. White Polar bears blend in more easily with their surroundings, enabling them to sneak up on their prey and make hunting easier. Non-white Polar bears eventually became extinct because of this hunting disadvantage. millmillhot321:well,actually their fur is actually not colored. their fur is see-through. it's like a little tube. it's white because of the sun. look up Polar Bears, a book on polar bears that's where i learend it.
yes a polar bear has enemies . a walrus andsome ethier stuff. Enemies: Other polar bears and humans (1) directly, and (2) indirectly by humans through loss of habitat for oil exploitation, sea pollution and global warming. Bear cubs are volurable to wolves.
whales
Does the kodiak bear live in the tundra?
The Kodiak bear (Ursus arctosmiddendorffi), also known as the Kodiak brown bear or the Alaskan grizzly bear or American brown bear, occupies the islands of the Kodiak Archipelago in South-Western Alaska. Its name in the Alutiiq language is Taquka-aq. It is the largest subspecies of brown bear.
Why does a polar bear migrate?
Not really. They don't travel far distances like whales and most birds do, they stay in the same area year after year. Sows "migrate" inland during the winter to hibernate and give birth to her cubs, but then travel out to the sea to begin hunting. During the short summer months polar bears are found on the mainland close to the ocean living off of lichens and lemmings and probably some berries, not venturing out to the ocean.
Polar bears will move inland during the winter to build their dens, which could be considered migrating. However, they don't do it cross-country like birds do, and don't move too far.
Where do polar bears get their nutrients from?
bears get energy from eating healthy foods like berries and fish they could also get energy by running or getting excercise every day
Why do polar bears need sea ice?
Polar bears eat seals. Seals swim faster than bears do, so the bears need a big area of ice floating on the sea. The bear waits by a hole in the ice. When a seal comes up through the hole for air, the bear is ready. Polar bears need food, and that's why they need ice. I don't know why or whether they need snow.
Do saltwater crocodiles swimout to sea?
There are three related species - crocodile, alligator and ghariyal. Crocodiles have active lingual (on tongue) glands that can secrete salt - these glands are present also in alligators but aren't active. That's why crocodiles can live in the ocean where alligators can't survive for long (ghariyal is a purely freshwater species with no such gland at all).
Though the crocodiles are poor swimmers, the larget living reptile, called the estuarine crocodile (Crocodylus porosus) can ride sea waves and cross the sea to another nearby land area. They live in mangrove forests or estuaries near the seashore.
In what way is a polar bear suited to its environment?
their fur is white is a a great camouflage against man trying to hunt them, they have several layers of fur and fat to protect them against the cold, they have small ears so there ears can keep warm and there blood can't take the heat away.
They are so well insulated that they give off no detectable heat when out on the ice, and are invisible to infrared (heat-sensing) photography except for a small spot just in front of their nose, made by exhaled breath. On cold days they may dig a hole, curl up and even cover their nose with a paw. On warm days, they pant, may sleep anywhere in almost any position, and may be sprawled out with unfurred foot pads waving in the air.
Contrary to popular belief, the polar bear's fur neither acts like a fiber optic nor "solar heating" system. All visible light is reflected (which is why we see the bear as white), and UV light (which is present in the Polar Region only for the warmest, 4 months of full summer light) is only superficially absorbed at the ends of the guard hairs. The skin is also black, enabling the bear to absorb UV rays and thus keep warm. However, a polar bear's primary insulation is by the thick fat pad. They also have slightly webbed feet that make them great swimmers. They have an extra eyelid that is transparent, it lets them see while under water and at the same time protects the cornea of the eye. They long snout helps warm the inhaled air before it gets to the lungs.
What do polar bears look like when they are born?
They stay with there mams until there big and strong then they eat your face off!
How long have poler bears been endangered?
The Polar Bear has been on the IUCN Red List since 1982, listed as "vulnerable". The U.S. Fish and Wildlife Services, Endangered Species List added the Polar Bear in May, 2008 with a "threatened" status. So, the Polar Bear has been on the IUCN Red List for 27 years, and on the U.S. FWS Endangered Species List for almost one year. For more details, please see sites listed below.
Bears typically kill their prey using powerful jaws and sharp claws. They may ambush their target, using their strength to overpower it. Depending on the species, bears can employ different hunting techniques; for instance, grizzly bears often use a surprise attack, while polar bears may stalk seals on ice. Once caught, they use their physical prowess to deliver fatal bites or strikes, ensuring a quick kill.
Can polar bears walk backwards?
Yes, Polar Bears are able to walk backwards. I'm not sure what, why, or who studied this and put the research data together. But it would seem, that when most Polar Bears deficate, or go to the bathroom, they have a certain procedure they go through. This involves walking backwards several steps. They will walk backwards, taking larger steps with the front paws than, with the back ones, and in about five to six steps their front paws are almost on top of their back paws. This causes their "bum" to stick out, and then they can answer the call of nature, by lifting their stubby little tail deficating. For more details, I can't imagine there are, many more than this, but please see the sites listed below.
