Rabu, 04 Juli 2012

Bear

  
The Biggest Animals Kingdom and in The World | Bear | The English word "bear" comes from Old English Bera and belongs to a family name for the bear in the Germanic languages, originally an adjective meaning "brown." In Scandinavia the word for bear is Björn (or Bjørn), and is a relatively common name given to men. The theory of the bear taboo is taught to almost all beginning students of Indo-European language and the historical, the supposed original PIE word for bear is itself descriptive, because a cognate word in Sanskrit rakṣas, meaning "harm injury


Bears are usually bulky and robust animals, having relatively short legs. The bears are sexually dimorphic with respect to size, with males being larger. Larger species tend to have higher levels of sexual dimorphism compared to smaller species, and as a species varies in size between individuals of the size distribution of large areas also tend to vary more. Bears are the most massive terrestrial members of the order Carnivora, with some polar bears and brown bears weighing over 750 kg (1,700 lb). Because that is the largest species may depend on whether the assessment is based on what types of the largest individuals (brown bear) or more average size (polar bears) has. The bears are smaller Asian Sun Bears, with an average of 65 kg (140 lb) for men and 45 kg (99 lb) for women to weigh.


Unlike the terrestrial carnivorans, bears are plantigrade. Bears can stand on their hind legs and sit up straight with remarkable balance. Bears have an excellent sense of smell, sense of smell better than dogs (Canidae), or any other mammal. Smell is the primary sense used by bears to find more of her diet. Polar bears are displayed on the second carnassials re-evolved fully functional, as their diet changed back to carnivory. Bears are found mainly in the northern hemisphere, with a single species, the spectacled bear, which is in South America Atlas Bear, a subspecies of the brown bear, the bear was only from Africa.


The most common species is the brown bear, east of Western Europe is via Asia to the western areas of North America. The American black bear is limited to North America, like the polar bear is limited to the Arctic Sea. All other species are Asian. With the exception of the polar bears are primarily forest species. Some species, especially the brown bear per season may occupy or use other areas, such as scrubs or alpine tundra.

 The sloth bear Asia is the night of bears, but this varies from individual and females with cubs are often during the day to compete with men and bears occur are usually solitary nocturnal predators and are considered the most anti-social all Carnivora. Links between breeding boars are short, and the only time that the bears are found in small groups, young mothers with rewards seasonal or occasional foods (such as salmon runs).


Masts can be very important to the diet of this species, and mast failures can result in long-distance movements by bears looking for alternative sources of food. An exception is the polar bear who has a diet mainly of marine mammals to survive in the Arctic. All bears eat sources of food available, and the nature of which vary seasonally. Although (besides Polar Bears), both species of black bear and grizzly bear can sometimes lead to large prey such as ungulates.

Mother bears can also tend to defend their cubs against other predators. The tiger is the only known predator and prey, known in adult bears regularly, including sloth bears, Asian black bears, pandas, bears and brown bears small. The age of the bears reach sexual maturity is highly variable, both between and within species. The bear's courtship period is very short. Bears in northern climates reproduce season, usually after a period of inactivity similar to hibernation, although tropical species produce throughout the year. Puppies are born toothless, blind, and bald. The cubs of brown bears, usually born in litters of 1-3, usually stay with their mother for two full seasons.


Bears reach sexual maturity in five to seven years. Male bears, polar bears and especially Brown, will sometimes kill and devour boy born to another father, a wife to return to induce breeding. Some species like the polar bear, American black bear, sloth bear and brown bear, are dangerous to humans, especially in areas where they have become accustomed to humans. Injuries caused by bears are rare, but they are often widely publicized. Bears may also conflict with people raid attack crops or livestock. These problems may be the work of only a few bears, but to create a climate of conflict as farmers realize all losses caused by bears and defense of the preventive removal of all bears. Mitigation methods can be used to bear damage to crops, and reducing the place to antipathy bears

The laws were adopted in many areas of the world to protect bears from hunters destroy 'habitat. The public perception of bears is often very positive, as people identify with bears because of their omnivorous diet, the ability to stand on two legs, and the symbolic meaning, and there is broad support for bear protection in any case in more affluent societies. Some areas with bear populations also forbade the eating of bears, including giving them access to garbage or other food waste. The bears were held before the fighting in Europe since at least the 16th century.
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