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Walrus


            
             The walrus has been hunted for hundreds of years. Walruses today are protected from commercial fishing but continue to be an important species for the Native peoples of the arctic, contributing both for food and raw material for tools and art. The management of walrus populations is difficult due to their wide range, marine existence and uncertain population description. In addition, pollution is a growing concern in all marine species. Here follows a description of the Walrus and how humans are a threat to the existence of the Walrus. .
             The walrus is the only seal with extended tusks. Both genders have tusks but the males are longer and straighter. Walruses have a relatively small head in relation to their bodies. The face is flattened and the upper lip is covered with short stiff body hair. They are generally brown in color but it varies with age and sex. The young are dark brown and can appear black. The oldest males have the palest color, with a whitish appearance. Walruses live in the Arctic waters. Two subspecies are recognized, the Atlantic walrus, and the Pacific walrus (Fay 1985). The subspecies occupy geographically distinct areas and differ in size. The Pacific walrus inhabit the Bering and Chukchi Sea and is larger in body, skull, and tusk size than the Atlantic walrus (Fay 1985). The Atlantic walrus is distributed from northern Canada and Hudson Bay in the west to Novaya Zemlya in Russia to the east. The male walrus is larger than the female. Adult male Pacific walruses are approximately 20 percent longer and weigh 50 percent more than females. The length of the Pacific male is on average 3.15 m and the weight 1200kg. Females are 2.6 m long and weigh 800kg (Reeves et al 1992). Male Atlantic walruses" length is approximately 3 m and weighs 1200kg. Females are 2.5 m long and weigh 600 - 700kg. .
             Females can reproduce when they are 5 - 6 years. Males become sexually mature at an age of 8 - 10 years, but need to grow for a few years more before they can compete for females.


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