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Polar Bear
The 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 the largest extant bear species, as well as the largest extant land carnivore. A boar (adult male) weighs around , 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, p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kodiak Bear
The Kodiak bear (''Ursus arctos middendorffi''), also known as the Kodiak brown bear, sometimes the Alaskan brown bear, inhabits the islands of the Kodiak Archipelago in southwest Alaska. It is the largest recognized subspecies or population of the brown bear, and one of the two largest bears alive today, the other being the polar bear. They are also considered by some to be a population of grizzly bears. Physiologically, the Kodiak bear is very similar to the other brown bear subspecies, such as the mainland grizzly bear (''Ursus arctos horribilis'') and the extinct California grizzly bear (''U. a. californicus''), with the main difference being size. While there is generally much variation in size between brown bears in different areas, most usually weigh between 115 and 360 kg (254 and 794 lb). The Kodiak bear, on the other hand, commonly reaches sizes of , and has even been known to exceed a weight of . Despite this large variation in size, the diet and lifest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Mammal
Marine mammals are aquatic mammals that rely on the ocean and other marine ecosystems for their existence. They include animals such as Pinniped, seals, Cetacea, whales, Sirenia, manatees, sea otters and polar bears. They are an informal group, unified only by their reliance on marine environments for feeding and survival. Marine mammal adaptation to an aquatic lifestyle varies considerably between species. Both Cetacea, cetaceans and Sirenia, sirenians are fully aquatic and therefore are obligate water dwellers. Seals and sea-lions are semiaquatic; they spend the majority of their time in the water but need to return to land for important activities such as mating, breeding in the wild, breeding and molting. In contrast, both otters and the polar bear are much less adapted to aquatic living. The diets of marine mammals vary considerably as well; some eat zooplankton, others eat fish, squid, shellfish, or sea-grass, and a few eat other mammals. While the number of marine mammals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the '' Ice age'') is the geological epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing a faunal interchange between the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Ice
Sea ice arises as seawater freezes. Because ice is less dense than water, it floats on the ocean's surface (as does fresh water ice, which has an even lower density). Sea ice covers about 7% of the Earth's surface and about 12% of the world's oceans. Much of the world's sea ice is enclosed within the polar ice packs in the Earth's polar regions: the Arctic ice pack of the Arctic Ocean and the Antarctic ice pack of the Southern Ocean. Polar packs undergo a significant yearly cycling in surface extent, a natural process upon which depends the Arctic ecology, including the ocean's ecosystems. Due to the action of winds, currents and temperature fluctuations, sea ice is very dynamic, leading to a wide variety of ice types and features. Sea ice may be contrasted with icebergs, which are chunks of ice shelves or glaciers that calve into the ocean. Depending on location, sea ice expanses may also incorporate icebergs. General features and dynamics Sea ice does not simply grow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transliteration
Transliteration is a type of conversion of a text from one script to another that involves swapping letters (thus ''trans-'' + '' liter-'') in predictable ways, such as Greek → , Cyrillic → , Greek → the digraph , Armenian → or Latin → . For instance, for the Modern Greek term "", which is usually translated as " Hellenic Republic", the usual transliteration to Latin script is , and the name for Russia in Cyrillic script, "", is usually transliterated as . Transliteration is not primarily concerned with representing the sounds of the original but rather with representing the characters, ideally accurately and unambiguously. Thus, in the Greek above example, is transliterated though it is pronounced , is transliterated though pronounced , and is transliterated , though it is pronounced (exactly like ) and is not long. Transcription, conversely, seeks to capture sound rather than spelling; "" corresponds to in the International Phonetic Alphabet. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanook
In Inuit religion, Nanook (; iu, ᓇᓄᖅ , lit. "polar bear") was the master of bears, meaning he decided if hunters deserved success in finding and hunting bears and punished violations of taboos. The word was popularized by ''Nanook of the North'', the first feature-length documentary. The Inuit believed that Nanook, the polar bear, was powerful and mighty, and they thought that he was "almost man." The Inuit hunters would worship this great bear because they believed that he decided if the hunters would be successful. “In the past, the Inuit ate polar bear meat and used the fur to make warm trousers for men and kamiks (soft boots) for women”."The Inuit and Polar Bears." Polar Bears International. N.p., n.d. Web. 19 Nov. 2013. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inuit
Inuit (; iu, ᐃᓄᐃᑦ 'the people', singular: Inuk, , dual: Inuuk, ) are a group of culturally similar indigenous peoples inhabiting the Arctic and subarctic regions of Greenland, Labrador, Quebec, Nunavut, the Northwest Territories, and Alaska. Inuit languages are part of the Eskimo–Aleut languages, also known as Inuit-Yupik-Unangan, and also as Eskaleut. Inuit Sign Language is a critically endangered language isolate used in Nunavut. Inuit live throughout most of Northern Canada in the territory of Nunavut, Nunavik in the northern third of Quebec, Nunatsiavut and NunatuKavut in Labrador, and in various parts of the Northwest Territories, particularly around the Arctic Ocean, in the Inuvialuit Settlement Region. With the exception of NunatuKavut, these areas are known, primarily by Inuit Tapiriit Kanatami, as Inuit Nunangat. In Canada, sections 25 and 35 of the Constitution Act of 1982 classify Inuit as a distinctive group of Aboriginal Canadians who are no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the Roman Republic it became the dominant language in the Italian region and subsequently throughout the Roman Empire. Even after the fall of Western Rome, Latin remained the common language of international communication, science, scholarship and academia in Europe until well into the 18th century, when other regional vernaculars (including its own descendants, the Romance languages) supplanted it in common academic and political usage, and it eventually became a dead language in the modern linguistic definition. Latin is a highly inflected language, with three distinct genders (masculine, feminine, and neuter), six or seven noun cases (nominative, accusative, genitive, dative, ablative, and vocative), five declensions, four ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Name
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (which may be shortened to just "binomial"), a binomen, name or a scientific name; more informally it is also historically called a Latin name. The first part of the name – the '' generic name'' – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within the genus. For example, modern humans belong to the genus '' Homo'' and within this genus to the species ''Homo sapiens''. '' Tyrannosaurus rex'' is likely the most widely known binomial. The ''formal'' introduction of this system of naming species is cre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1773 Phipps Expedition Towards The North Pole
The 1773 Phipps expedition towards the North Pole was a British Royal Navy expedition in which two ships under the commands of Constantine John Phipps and Skeffington Lutwidge sailed towards the North Pole in the summer of 1773 and became stuck in ice near Svalbard. Background In January 1773, on the initiative of its vice president Daines Barrington, the Secretary of the Royal Society, Matthew Maty, sent a letter to Lord Sandwich, the First Lord of the Admiralty, suggesting a voyage to the North Pole. Barrington had been influenced by the writings of the Swiss geographer Samuel Engel, who had suggested in his 1765 book the existence of a vast empty sea near the North Pole. Engel's explanation for the sea ice found in the Arctic was that most of it came from rivers, and so would only be found close to land. Sandwich, a friend of Daines Barrington, proposed the expedition to King George III, "which his Majesty was pleased to direct should be immediately undertaken". Preparat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constantine Phipps, 2nd Baron Mulgrave
Constantine John Phipps, 2nd Baron Mulgrave (30 May 1744 – 10 October 1792) was an English explorer and officer in the Royal Navy. He served during the Seven Years' War and the American War of Independence, seeing action in a number of battles and engagements. Inheriting a title, he also went on to have a successful career in Parliament and occupied a number of political offices during his later years. Family and early life Phipps was born on 30 May 1744, the eldest son of Constantine Phipps, 1st Baron Mulgrave and his wife, Lepel Hervey, the eldest daughter of John 2nd Baron Hervey of Ickworth and Mary 'Molly' Lepel. Phipps attended Eton College, where he befriended Joseph Banks, the English naturalist, botanist, and later patron of the natural sciences. Seven Years' War In January 1759, he joined the 70-gun as a cadet under his uncle Captain Augustus Hervey during Hervey's 21-week watch on the French fleet in 1759. Phipps remained with his uncle on the latter's appoin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inuit Languages
The Inuit languages are a closely related group of indigenous American languages traditionally spoken across the North American Arctic and adjacent subarctic, reaching farthest south in Labrador. The related Yupik languages (spoken in western and southern Alaska, as well as in nearby Russia's farthest east, though severely endangered there) are the two main branches of Eskaleut, a primary language family. The Inuit live primarily in three countries: Greenland (Kingdom of Denmark), Canada (specifically in Nunavut, Northwest Territories, the Nunavik region of Quebec, and the Nunatsiavut and Nunatuĸavut regions of Labrador), and the United States (specifically the coast of Alaska). The total population of Inuit speaking their traditional languages is difficult to assess with precision, since most counts rely on self-reported census data that may not accurately reflect usage or competence. Greenland census estimates place the number of speakers of varieties of Inuit langu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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