Polar Bear

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Introduction1

Dictionary

polar bear : a large creamy-white carnivorous bear (Ursus maritimus synonym Thalarctos maritimus) that inhabits arctic regions — Webster

OneLook, Free Dictionary, Wiktionary

Encyclopedia

Polar bear (Ursus maritimus) is a hypercarnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is a large bear, approximately the same size as the omnivorous Kodiak bear (Ursus arctos middendorffi). A boar (adult male) weighs around 350–700 kg (772–1,543 lb), while a sow (adult female) is about half that size. Although it is the sister species of the brown bear, it has evolved to occupy a narrower ecological niche, with many body characteristics adapted for cold temperatures, for moving across snow, ice and open water, and for hunting seals, which make up most of its diet. Although most polar bears are born on land, they spend most of their time on the sea ice. Their scientific name means “maritime bear” and derives from this fact. Polar bears hunt their preferred food of seals from the edge of sea ice, often living off fat reserves when no sea ice is present. Because of their dependence on the sea ice, polar bears are classified as marine mammals — Wikipedia

Encyclopædia Britannica

Search

WolframAlpha

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Inspiration

Note: This is a 360° Video — press and hold to explore it!

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Preservation

Spectacular GoPro Footage Of Polar Bears Searching For Ice (Earth Porn)
Arctic Bear Productions

Library

WorldCat, Library of Congress, UPenn Online Books, Open Library

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Participation

Education

Course

OER Commons: Open Educational Resources

Community

News

Phys.org, NPR Archives

Book

ISBNdb

Government

Document

USA.gov

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Expression

Adventure

Tundra Buggy Lodge (Churchill, Manitoba)

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More News …

Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • Rare hunting scene raises questions over polar...
    on November 28, 2021 at 1:56 pm

    A polar bear chases a reindeer into the water, drags it ashore and devours it, in a striking scene caught on film for the first time.

  • Machine learning IDs mammal species with the...
    on November 17, 2021 at 12:00 am

    Back and forth transmission of SARS-CoV-2 between people and other mammals increases the risk of new variants and threatens efforts to control COVID-19. A new study, published today in Proceedings of the Royal Society B, used a novel modelling approach to predict the zoonotic capacity of 5,400 mammal species, extending predictive capacity by an order of magnitude. Of the high risk species flagged, many live near people and in COVID-19 hotspots.

  • Study shows political ideology determines health...
    on November 11, 2021 at 5:20 pm

    When considering determinants of an individual's health outcomes, doctors and researchers consider personal factors like age, race, gender or socioeconomic factors such as education quality, economic stability or health care access. A new study from the University of Kansas adds to the evidence that political ideology can be a social determinant of health, especially during public health crises.

  • Why are people who've experienced natural...
    on November 11, 2021 at 2:56 pm

    When a forest fire rages or a flood hits, many people these days tend to put the blame squarely on climate change. But many others do not, even when the extreme weather affects them personally. And that's something a Canada-U.S. team of researchers is trying to understand.

  • Smuggling bear parts in Australia and New Zealand
    on November 9, 2021 at 4:01 pm

    Australia doesn't have any native bears, yet our involvement in the illegal trade of bear parts and products is sadly a different story.

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Related

Here are links to pages about closely related subjects.

Knowledge Realm

Terrestrial

Sphere Land, Ice, Water (Ocean), Air
Ecosystem Forest, Grassland, Desert, Arctic, Aquatic

Life Cell, Gene, Tree of Life
Microorganism
Plant Flower, Tree
Animal
Invertebrate Cuttlefish, Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human

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Notes

1.   The resources on this page are are organized by a classification scheme developed exclusively for Cosma.