What is a blue whale?

The endangered blue whale reached the position of the only largest organism ever to live on the ground. Blue whales have a Baleen plate instead of teeth, migrate long distances and communicate through vocalization. Whale, who was smoothing this beautiful animal at the beginning of the 20th century.

As a mammal, the blue whale must breathe air, remain warm and give birth to live young. It breathes two wounds at the top of the head and usually one breath takes 15 minutes. Because the blue whales are found in every main ocean, they migrate to watch a slight current. During the winter they swim around subtropical or mild areas closer to the equator, but travel long distances for summer to achieve colder arctic areas. These giant creatures need about 4 tons (3.6 metric tons) krill, atyp shrimp, a day. They feed water filter through their Baleen plates and catch small pieces of food. If it is not caught in fishing networks, illegally harged whales or adversely influenced by pollution, blue whalesBA should live from 40-80 years.

Three types of blue whales look similar. musculus lives in the northern oceans, in tropical zones and intermedia further down in the southern hemisphere. They are bluish gray with wide tail flaps called flukes. The stages on the back are so unique that sea biologists used them to identify individuals. The ridges along the neck that stretch from the chin to the stomach are called Rorqual, for the Norwegian word for "furrows".

Blue Whale We meet during the winter, every 2-3 years, while they fast and live on the collected fat. After pregnancy Anor, a woman gives birth to one calf that nurses for 6 months to a year. The calf will gradually go to Krill, but will probably stay with his mother for a few years for protection. Sexual maturity is achieved when it is at the age of 5-7.

Unfortunately, the large populations of whales decreased in the last century in the last centuryThrough the new technology that facilitated their killing for whales. Along with pollution and other threats from incorrect fishing nets, the number of blue whales fell to several thousand. Much efforts, including a limited whaler and regulated fishing, work to prevent this whale from preventing extinction.