Polar Bear's Habitat（超需要）20點！！

住處

北極熊只住在遙遠的北極地區，那兒非常寒冷，到處都覆蓋著冰和雪。所以只有在加拿大、美國阿拉斯加、挪威的冷岸群島、俄羅斯和丹麥的格陵蘭島才能看到北極熊。

北極熊的身體

一隻成年的北極熊體重約有六百五公斤，體長約有三公尺。除了鼻子和腳墊外全身長滿了又濃又密的白毛。牠們的表皮還有一層脂肪，可以禦寒。

北極熊在陸地上移動的方法很特別﹕牠們可以用溜冰的方式前進，也可用滑雪的方法，以前腳當雪橇，用後腳來推動身體。牠們游泳時，前腳用狗仔式的方法撥水，後腳就拖在身後當做舵來用，而且還可長時間停留在水中。



北極熊的食物

北極熊的主食是海豹，通常只吃牠們的脂肪層和腸子。但北極熊也是食腐動物，故也吃海象、白鯨和北極鯨的殘骸。到了夏天，牠們被困在陸地上時，則以鳥類、鳥蛋和植物為食糧。

北極熊的求偶和交配

母熊長到五、六歲大才有生育能力，直到二十多歲為止。熊寶寶在兩歲多之前都會在媽媽身邊，所以母熊每隔三年才會生育。母熊準備要交配時，尿液裡會散發出一種特殊的氣味，公熊就靠著這氣味找到母熊。

交配行為通常在四月或五月進行。交配完幾個月後，受精卵才會在子宮裡著床，這種懷孕方法稱為"延遲植入"。
Polar bear's place

Polar bears live only in the remote Arctic, there is very cold, everywhere covered with ice and snow. So only in order to see the polar bears in Canada, USA and Alaska, Norway's Svalbard Islands, Russia and Denmark, Greenland.

Polar bear's body

The weight of an adult polar bear about six hundred fifty kilograms, body length of about three meters. In addition to the nose and mats, body covered with thick and dense white hair. Their skin there is a layer of fat, you can keep out the cold.

Polar bear on land moving very special: they can be used skating forward, also available ski feet when the sled with the rear foot to push the body. They swim front leg Doggy Style water repellent, rear foot drag behind them as rudder, but also to stay in the water for a long time.




The staple food of the polar bear is seals, usually eat the fat layer and intestines. The polar bear is also scavengers animals, it is also eating walrus, beluga whales and the Arctic whale wreckage. The summer, they are trapped in the land, by birds, eggs and plants for food.

Courtship and mating of the polar bear

The female bears grow to five or six years old have fertility until the 24-year-old. Baby Bear in more than two years before my mother, so only every three years, the mother bear children. Mother bear is ready to mate, urine exudes a special smell, bears to rely on this smell to find the mother bear.

Mating behavior usually in April

Polar Bear (Polar Bear, the scientific name Ursus maritimus) distribution in the polar about Arctic waters near its coastline. Their geographical distribution is now part of the jurisdiction of Canada, the United States, Russia, Sweden, Finland, Norway. Found in the Labrador border to Alaska, South from James Bay to the north of Ellesmere Island in Canada, the polar bear footprints all over; during the summer, in the region of Hessen Bay and James Bay polar bear, and sometimes also in-depth inland up to 150 kilometers (90 miles).

北極熊(Polar Bear，學名Ursus maritimus)分布在極地附近約北極海域及其海岸線上。牠們分布的地域現屬加拿大、美國、俄羅斯、瑞典、芬蘭、挪威管轄。在加拿大境內，北極熊的足跡遍見於拉布拉多到阿拉斯加的邊界，南則從詹姆斯灣至北邊的艾爾斯米爾島；夏天期間，在赫森灣與詹姆斯灣地區的北極熊，有時還深入內陸達150公里(90英哩)。