Jumat, 17 Mei 2013



The Biggest Animals Kingdom and in The World | Orca | A typical orca clearly a black background, white chest and sides, and a white patch above and behind the eye. It has a heavy body and sturdy with a large dorsal fin up to 2 meters (6.6 feet) in height. Behind the fin, gray "saddle patch" dark in the back. Antarctic killer whales may pale gray to nearly white backs. When viewed from a distance, the young man with other cetacean species such as the false killer whale or Risso's dolphins confused. The killer whale's teeth are very strong and enamel. Inclined teeth and appearance so the killer whale to withstand severe shocks prey, while the middle and back teeth stay firmly in place. Orcas are the largest members of the dolphin family. Men usually 6-8 meters (20-26 feet) in length and weigh more than 6 tons (5.9 long tons; 6.6 short tons). [53] The females are smaller, usually 5-7 meters (16-23 feet) and a weight of about 3.4 tons (3.0 to 3.9 long tons, from 3.3 to 4.4 tons shortlist) . The largest male orca in history was 9.8 m (32 ft), weighing about 10 tonnes (9.8 long tons 11 short tons), while the largest female was 8.5 meters (28 feet) and weighs 7.5 tons (8.3 long tons 7.4 short tons). The murderess delphinid whale skeleton structure is typical, but it is strong.

Killer whale pectoral fins are large and round, similar to rowing. Males have significantly larger pectoral fins than females. Men and women have different patterns of black and white leather in their genitals. Gender differences were also evident in the skull and jaw are adult men and women and has a large occipital crest. A single orca are often by their dorsal fin and saddle patch. Published lists contain identifying photographs and names for hundreds of North Pacific animals. Photo identification has enabled the population of killer whales is more than estimated and has great insight into the life and social structures of each year. White whale, but in normal killer whales were sighted in the Bering Sea and around St. Lawrence Island, and near the Russian coast rare sporadic. In February 2008, a white whale has two miles (3.2 km) of Kanaga Volcano photographed in the Aleutian Islands. Killer whales have good eyesight above and below the water, excellent hearing and a good sense of touch. Orcas mature woman in nearly 15 years. Killer whales are unique among whales because their heads are smaller than parent. Females breed until the age of 40, which will raise five children on average.

Life expectancy in captivity of killer whales are usually much shorter, usually less than 25 years, but many people live in 30 years, and some reached the age of 40 ° In many cases, the life of the animal murderess dependent. Killer whales are found in all oceans and most seas. Systematic surveys indicate the highest densities of killer whales (> 0:40 individuals per 100 km ²) in the north-east Atlantic from the coast of Norway, in the North Pacific along the Aleutian Islands, Gulf of Alaska and the Southern Ocean off the coast of Antarctica. High density has also been reported but not quantified in the western North Pacific around the Sea of Japan, Sea of Okhotsk, Kuril Islands, Kamchatka and the Commander Islands and in the southern hemisphere off the coast of South Australia, Patagonia, the southern coast of Brazil and the southern end. Information sharing by the sea and tropical waters is weak, but the sightings spread, but not often that the killer whale can survive in most water temperatures. With the decline of the Arctic sea ice rapidly in the Hudson Strait, their range now extends deep into the northwest Atlantic.

Migration patterns are poorly understood. Each summer, the same people along the coast of British Columbia and Washington. Transient pods noted from southern Alaska to central California. Resident orca pod areas ranging from 320 to 1.300 km (200-810 miles). Occasionally, killer whales swim into freshwater rivers. Documented with the Columbia River in the United States 100 miles (160 km). 

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