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polar bear facts

20 de outubro de 2020 , por

This super abundance of seals enables the female to accumulate fat quickly (Stirling 1990, p 83-84). They also believe the polar bear population is divided into 6 core populations, with members of each core never mingling with the other core populations (Lynch 1993, p 6). The sea ice provides a platform from which polar bears can hunt.
(877) 365-7879 A polar bear’s track is generally only visible in soft snow or mud and may show fringed edges due to the hair on the paw (Brown 1993, p 76).

Cubs learn from their mother by watching and copying her movements and behavior. Resources used: We are a 501(c)(3) non-profit that relies entirely on the support of visitors, merchandise sales and people like you. A polar bear’s territory may be small if the bear has constant access to ice and seals. 1993.

Taxonomy: The scientific name for the polar bear is Ursus maritimus, which means ‘Sea Bear’ in Latin. When the cubs emerge from the den they weigh about 25 – 30 lbs. The den is usually about 6 ½ feet by 5 feet in size, and approximately 3 feet in height (Stirling 1990, p 87). 1926 Highway 169 Ears/Hearing: Polar bears have small fur covered ears and sensitive hearing. The toes form an arc similar to a black bear’s track. In spring and summer, the pregnant bear will feed upon ringed seal pups that have been recently weaned. As a result of this, they can go weeks without eating.

During April – July, polar bears will usually eat only the skin and blubber of seals. They have a long thin but well developed neck, highly developed hindquarters and a straight profile (Brown 1993, p 51). Head: As a cub, the polar bear’s head is small with delicate features and the fur is whiter than that of older bears. [email protected]. Stirling and Guravich. They also hunt beluga whales and walruses (Lynch 1993, p 122). Polar bears can consume up to 150 lbs. In areas such as Greenland, the Bering Seas or Chukchi, the bears may have to relocate many hundreds of kilometers each year to remain on the ice where they can still hunt seals. At 2 ½ years, lactation ceases and either the female separates from her cubs or an adult male frightens the cubs away as he begins to follow the female in hopes of mating. The bottoms of their paws are covered with fur to keep them warm and to help with traction in slippery situations.A polar bear can sniff out a seal's breathing hole from more than half a mile away, according to the National Zoo. It can grab the polar bear from below, stab the bear with its tusks, and repeat this resulting in serious if not fatal injury to the bear (Brown 1993, p 108-109).

Taxonomy: The scientific name for the polar bear is Ursus maritimus, which means ‘Sea Bear’ in Latin. (Lynch 1993, p 5), Teeth: Healthy adult polar bears have a total of 42 teeth – incisors, canine, premolars (for biting) and molars (for shearing).

Some polar bears have been know to live as long as up to 32 years (Stirling and Guravich 1990, p 139-140). Females usually weigh from 330 to 720 lbs (Lynch 1993, p 58), while a super-fat pregnant females may reach as much as 1,100 lbs (Stirling and Guravich 1990, p 23). When the mother begins to stalk for food, the cubs will lie down and not move until she is finished her hunt. The cub soon learns to remain silent and observe the mother’s movements. Polar bears must take advantage of the good hunting to prepare for the times when their stored body fat is the key to survival.

Distribution and Population: Polar bears are found throughout the ice-covered waters of the Arctic region and prefer to remain out on the sea ice all year if possible. Litter Size: Two-thirds of all births result in twins.

By 8 months, cub’s face begins to fill out.

Description: A polar bear has an elongated body, with low, well-developed shoulders. (Stirling and Guravich 1990, p 24). Females stop having cubs around the age of 20. Once a male locates a female, they may be seen together for a week or more.

Their fat not only keeps polar bears warm, it also increases their buoyancy when they swim.Polar bears have built-in socks. Data compiled by John Derych (2001) They measure up to 30 centimeters (11.81 inches) across, to help polar bears tread on thin ice. On land, a polar bear has the edge over a walrus, but once in the water, the walrus has the edge. Bears- Monarchs of the Northern Wilderness. They usually kill a seal every 5-6 days.

Cubs: Young are born in late November through early January weighing between 1 and 1-½ lbs. Lynch 1993, Wayne. Help support our mission. Breeding Behavior: Females do not usually mate when cubs of the year or yearlings accompany them. They remain patient and well behaved. Feet: Polar bears have large feet, which help propel them through the water as they swim. During the summer months, polar bears will also eat carrion, small pieces of seaweed, grasses, crowberries, lemmings or voles (Lynch 1993, p 119). Triplets do occur but in most cases one of the cubs does not survive (Stirling 1990, p 88). The polar bear will slowly creep towards its prey, trying not to allow the seal to realize it is being hunted. Moms are quite attentive and groom and touch the cubs with their muzzle often (Stirling 1990, p 88). Canada considers polar bears a species of special concern under the National Species at Risk Act. At that moment, the polar bear lunges head first into the hole and grabs the seal (Lynch 1993, p 65). In late October the pregnant bear will come ashore and walk from snowbank to snowbank until she finds an appropriate place to build her den (Stirling 1990, p 85).

1993. Enemies: Most bears have few natural enemies except for humans and the human impact on bear habitat. Help support the North American Bear Center. Male cubs are usually larger than the female cubs. By 5 years and older the facial muscles develop and the face gets wider (Stirling and Guravich 1990, p 40).

Polar Bear Facts. There is intense competition among male polar bears, which often results in fighting among them. When a bear dives underwater the ear canals close (Brown 1993, p 81). Vocalizations: Polar bears vocalize as follows in response to their emotions: Reproduction: A male polar bear’s territory generally overlaps the territories of several females – giving the male an opportunity to mate with more than one female. The first is the ‘stalk’ and the second is the ‘still hunt’ (Lynch 1993, p 65). Polar Bears. After the age of 50 days, their canine teeth begin to grow in. Polar bears are usually found in the northern marine areas of Alaska, the Commonwealth of Independent States, Norway’s Svalbard Archepelago, Greenland and Canada (Lynch 1993, p 5). When a polar bear stands upright, the bear can reach a height of 10 feet or more. Larger males have a greater chance of winning these battles and of mating.

A polar bear learns the seasonal pattern of movements as a cub during the 2 years it remains with its mother (Stirling and Guravich 1990, p 68). Single cubs account for 20-30% of all births. During a ‘stalk’, the polar bear picks up the scent of the seal and tactfully moves closer to the seal. A ‘still hunt’ is when the polar bear has located an active breathing hole a seal is using. 1990. If they kill a newborn pup, they most likely will not eat it (Lynch 1993, p 66). Yearlings and 2-year-old cubs hunt approximately 4 – 7% of the time. Male polar bears generally weigh between 770 to 1500 pounds (Stirling and Guravich 1990, p 23) but can exceed more than 1500 lbs. An exception to this is threat walruses pose to polar bears. They're loners ... Other than the two to three years a cub spends with its mother, polar bears are …

The seal may be at a breathing hole, in a snow lair, or it may have hauled itself out on the ice. Dens are usually single chambers, slightly elevated from the entrance tunnel so warmer air remains with the female her and cubs. Ely, MN 55731, (218) 365-7879 The claws are black, short and stocky and are usually not visible in the track (Stirling and Guravich 1990, p 39).

Mating is interspersed with periods of intense interaction and hunting for seals (Stirling 1990, p 82). The sea ice provides a platform from which polar bears can hunt. When the ice is very thin, the bears extend their legs far apart and lower their bodies to distribute their weight. Weight: Polar bears are the largest land predators alive in the world today (Lynch 1993, p 58). Polar bears range in color from silvery-white to light yellow to straw yellow. Polar bears and adult walruses are rivals, occasionally coming into contact while feeding on whale carcasses or in the process of killing seals. The pads of the polar bear are covered with small papillae, which increase friction between the foot and the ice. They watch everything she does and will also sniff the same places their mother has sniffed. Longevity: The average age of a polar bear in the wild is 15 – 18 years. (Lynch 1993, p 58). Stay up to date with what’s happening at the North American Bear Center! Tracks: A polar bears forepaw is approximately 5 ¾ inches long and 9 inches wide while the hindpaw usually measures 13 inches long and 9 inches wide.
Entrance tunnels are long and narrow – about 2 feet in diameter. Their feet are flatter than those of other bears and are useful for shoveling snow when building dens (Brown 1993, p 73). During the first 2 months, cubs have an unsteady walk. Height: From the bottom of the paw, standing flat on the ground, to the highest point on the shoulder, a polar bear can reach up to 5.3 feet in height. (the Mountaineers Publishing Co.). Polar bear … The Great Bear Almanac. PO Box 161 We do not receive any state or federal funding. The bear will lie in wait next to the hole for up to 50 minutes, waiting for that critical time when the seal pops its head out of the water for a breath of air. By 2-5 years old the face gets longer but not wider.

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