In the world there are many beautiful and truly amazing animals. They can be safely attributed to the blue whale (it is also called blue). There are many legends about him. Yes, he is really very unusual.
What kind of animal is that
A whale is a mammal, but the mammal is unique, unlike the rest. Scientists have proven that their ancestors led a land-based lifestyle a long time ago. By the way, they had wool, tail, and also paws. Today it is hard to believe, but the fact remains. Recent studies have shown that the closest relative of the blue whale (and indeed any other whale in general) are artiodactyls.
The blue whale is simply incredible in size. In them he surpasses everyone in the world. Yes, it really is the biggest whale in the world. There is no living being more than him. A blue whale reaches thirty-three meters in length (maximum). But its weight may be one hundred and fifty tons.
The body of the blue whale is elongated. It is all covered with a smooth skin that is very even. There is practically no wool. Color - blue-gray. There are dark spots. They are the reason why the blue whale from a distance seems marble. Note that this animal appears blue only when it is looked at through water.
The blue whale is majestic and leisurely. His heart is reduced to twenty times per minute. The speed of the whale can develop rather big - up to forty-eight kilometers per hour.
The oval portion is about 27 percent of the total body. The weight of the heart is up to eight tons, the lung volume can reach three thousand liters, and the blood in it is about eight tons. The fountain, which creates a blue whale, releasing air, can reach ten meters in height. Due to its large size, blue whales are not kept in aquariums.
By themselves, these whales inhabit the oceans. The cold waters of the Southern Hemisphere are the birthplace of the largest individuals. Note that the warmer the water, the smaller the size of the blue whales living in it. The waters of Sri Lanka is one of the most suitable places for observing blue whales. Thousands of tourists come to these areas every year just to take a look at the largest animals of the globe.
In summer, the blue whale lives in cold waters, but moves closer to winter where it is warmer. He does this in order to save the lives of his cubs, the subcutaneous layer of which has not yet formed and has not become able to protect them from severe cold.
A female blue whale gives birth up to two times a year. Pregnancy is intrauterine. The fruit ripens within eleven months. The kid in length reaches from six to nine meters, and can weigh up to three tons. Twins are born in one case out of a hundred.
The cub becomes capable of independent movement from the first seconds of life. The mother produces milk during the next seven months. A kitten can drink up to forty liters of milk per day.
In seven months the calf will grow up pretty well - its length will reach about sixteen meters. The transition to adult nutrition will be carried out gradually. Blue whale food is plankton. He tracks it with the help of special antennae, which are located on the upper jaw in the usual place of the teeth. Puberty comes at the age of fifteen. The blue whale can survive to ninety years of age.
These animals are monogamous. The male takes a direct part in caring for the cub and protects him from dangers in every possible way.
Blue whales live in large concentrations only in places where there is a lot of food. Their number can reach sixty individuals. Their communication occurs through special sound waves. They can hear each other from an incredibly long distance.