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Polar Bear
Kristjan Paal
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The polar bear ( Ursus maritimus) is a bear native largely within the Arctic Circle encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is the world's largest land carnivore and also the largest bear, together with the omnivorous Kodiak bear, which is approximately the same size . A boar ( adult male ) weighs around 350–700 kg (770–1,500 l while a sow (adult female ) is about half that size. Although it is closely related to 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 the seals which make up most of its diet . Although most polar bears are born on land, they spend most of their time at sea. Their scientific name means " maritime bear, and derives from this fact . Polar bears can hunt their preferred food of seals from the edge of sea ice, often living off fat reserves when no sea ice is present .
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Punktid 50 punkti Autor soovib selle materjali allalaadimise eest saada 50 punkti.
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Aeg2013-05-19 Kuupäev, millal dokument üles laeti
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Autor kristjan426 Õppematerjali autor
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Tundra loomad

Tundra animals Reindeer Reindeer were first domesticated in Norway and northern Asia. When it was seen how valuable they were, they were brought to Alaska in 1887 and later to parts of Canada. These North American reindeer became known as caribou. Although they are called by different names, they are both considered to be a single species. Unlike deer, both the male and female have antlers. The antlers of the male are long, branched and massive, and they are a little flattened at the ends. The antlers of the female are much shorter, simpler and more slender and irregular. Their large, spreading hooves support the animal in snow in the winter and marshy tundra in the summer. Reindeer are also great swimmers and use their feet as paddles. They can also lower their metabolic rate and go into a semi-hibernation when conditions get very harsh. When it looks like there is nothing to eat on the winter tundra, reindeer will scrape the snow away wit

Inglisekeelne geograafia
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Most endangered bears

MOST ENDANGERED BEARS SIIRI PAURSON EMÜ 2016 TOPICS 1. GIANT PANDA (hiidpanda e. bambuskaru) 2. SUN BEAR (päikesekaru e. malai karu e. biruang) 3. ASIATIC BLACK BEAR (kaeluskaru) 4. SLOTH BEAR (huulkaru) 5. ANDEAN BEAR (prillkaru) 6. POLAR BEAR 7. BROWN BEAR 8. THE AMERICAN BLACK BEAR (baribal) 1. GIANT PANDA • The giant panda remains the world's most threatened bear species. • A very high risk of extinction (väljasuremine) in the wild. • Despite "the establishment of nearly 60 panda reserves, a ban on logging (metsaraie keeld), and widespread reforestation programmes," habitat destruction and degradation are still the panda's greatest enemies. 2. SUN BEAR •  The world's smallest bear species. • We estimate that sun bears have declined by at least 30 percent over the past 30 years and continue to decline at this rate. • Sun bears live mostly in the tropical forests of mainland Southeast Asia. • The two major threats

Inglise keel
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All studied biomes

1. Key features for all studied biomes. Tundra The main seasons are winter and summer. The tundra is the world's coldest and driest biomes. The average annual temperature is -28° C. Nights can last for weeks when the sun barely rises during some months in the winter, and the temperature can drop to -70° C. During the summer the sun shines almost 24 hours a day. Summer are usually warm. Average summer temperatures range from 3° to 16°C. TaigaTaiga is the Russian word for forest and is the largest biome in the world. It stretches over Eurasia and North America. The taiga is located near the top of the world, just below the tundra biome. The winters in the taiga are very cold with only snowfall. The summers are warm, rainy, and humid. Some of the animals in the taiga hibernate in the winter, some fly south if they can, while some just cooperate with the environment. GrasslandsGrassland biomes can be found in the middle latitudes. They can have either moist continental climates or dry

Inglisekeelne geograafia
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Topic - Canada 2

Topic ­ Canada Tallinn English College 2006 1. Introduction If you had to use two words to describe Canada, they might be large and diverse. Canada is the second largest country in the world with a territory of about 10 million square kilometers and it is bordered by three oceans: the Arctic, the Pacific and the Atlantic Oceans. The population of Canada is about 31 million people. About 77% of the people live in cities which lie in a band about 100 miles wide above the border of the United States. The capital of Canada is Ottawa. Other large cities are Montreal, Toronto, Vancouver, Winnipeg and Quebec. 2. Geographical position Canada is a huge country in the continent of North America. It is bordered with the Atlantic Ocean in the east, the Pacific Ocean in the west, the United States of America in the south and the Arctic Ocean in the north. Canada is a vast country, with a territory of 3.8 million square

Inglise keel
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Tundra

Tundra Tundra is the world's youngest biome. It was formed 10 000 years ago. Located at latitudes 55° to 70° North. Almost all tundras are located in the Northern Hemisphere, encircling arctic desert and extending south to the coniferous forests of the taiga. The ecotone (ecological boundary region) between the tundra and the forest is known as the tree line or timberline. Tundra comes from the Finnish word tunturi, meaning treeless plain. It is noted for its frost-moulded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons. Dead organic material functions as a nutrient pool. The two major nutrients are nitrogen and phosphorus. Nitrogen is created by biological fixation, and phosphorus is created by precipitation. The most distinctive characteristic of tundra soil is its permafrost, a permanently frozen layer of ground. The average winter temperature is -28°C, but the average summer temperature is 3-16°C. During the brief summ

Inglisekeelne geograafia
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Topic - Canada

Tallinna Inglise Kolledz Canada. The land of diversity. Tallinn 2006 Canada. If you had to use two words to describe Canada, they might be large and diverse. Canada is the second largest country in the world with a territory of about 10 million square kilometers and it is bordered by three oceans: the Arctic, the Pacific and the Atlantic Oceans. The population of Canada is about 31 million people. About 77% of the people live in cities which lie in a band about 100 miles wide above the border of the United States. The capital of Canada is Ottawa. Other large cities are Montreal, Toronto, Vancouver, Winnipeg and Quebec. Canada has two official languages ­ English and French. It's interesting to know that about 61% of Canadians name English and 24% French their mother tongue. There are also many other languages spoken in Canada such as: Italian, Chinese, German, Polish, Ukrainian, Greek and Dutch. There are also many

Inglise keel
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Inuit Culture

Inuit Culture, Traditions, and History Traditional Inuit way of life was influenced by the harsh climate and stark landscapes of the Arctic tundra ­ from beliefs inspired by stories of the aurora to practicalities like homes made of snow. Inuit invented tools, gear, and methods to help them survive in this environment. Read on to learn more about traditional Inuit ways of life, and how Inuit culture has been changed over the past century. Geography Inuit communities are found in the Arctic, in the Northwest Territories, Labrador and Quebec in Canada, above tree line in Alaska (where people are called the Inupiat and Yupik), and in Russia (where people are called the Yupik people). In some areas, Inuit people are called "Eskimos" however many Inuit find this term offensive. The word "Inuit" means "the people" in the Inuktitut language. Inuit Homes In the tundra, where Inuit communities are found, there are not many building materials. No trees grow in the tundra so houses can not be ma

Inglise keel
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Kanada referaat

CANADA Canada is a vast country, second largest country of the world after Russia. It stretches from the Atlantic Ocean in the east to the Pacific Ocean in the west and to the Arctic Ocean in the North. Canada Covers most of the northern part of North America and its geography is very diverse. Canada's area is about 10 million square kilometers and its population is 31 000 000. Its capital is Ottowa and other main cities are Toronto, Montreal and Vancouver. Almost 75 % of canadians lives within 300 kilometer of the USA border, because the climate is softer in the South. 89 % of Canada is almost unhabited. Its official languages are English and French, but many other languages are spoken too. Like Italian, Chinese, German, Polish, Ukrainian, Dutch and Creek. There are also many native languages such as Algonquian. Most of the canadian's speak English (67 %), but French is very largely spoken too (26 % of the canadians).

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