Is the blue whale the largest animal in the world? With information introduction

We are no stranger to the blue whale, a marine creature, and there are introductions about it in books and TV programs. The blue whale is very large and is the overlord of the ocean, so is the blue whale the largest animal in the world? Do you have any relevant information? What is its natural enemy?

Is the blue whale the largest animal in the world?

At present, it is known that the largest animal in the world is the blue whale, which weighs 181tons. The blue whale's body is so huge that it has 2000 kilograms of tongue, 3000 kilograms of skull, 1000 kilograms of liver, 500kg of heart, 8000 kilograms of blood circulation and 45 kilograms of male testicles. If its intestines are straightened, it is 200-300 meters long, the blood vessels are thick enough to hold a child, the visceral wall is more than 60 centimeters thick, and the male's penis is 3 meters long. Its power is also astonishing, with a power of about 1500-1700 horsepower, making it a well-deserved Hercules in the animal world.

Blue whales are found in the oceans of the northern and southern hemispheres from the South Pole to the North Pole, especially in the oceans near the South Pole, but they are rare in tropical waters. Found in the Yellow Sea, East China Sea and South China Sea, including the waters of southern and southwestern Taiwan. Although the body is huge, usually slow, often motionless, but can rise and fall freely in the water, tail flexible swing, is not only the power to move forward, but also plays the role of rudder, advancing at a speed of up to 28 kilometers per hour.

In the course of millions of years of evolution, whales are not only getting bigger, but also getting bigger at breakneck speed.

"We think there are two key reasons why whales have evolved to grow faster than other mammals," said Alistair Evans, an evolutionary biologist at Monash University in Australia.

First, because they live in water, the pressure on their bodies is much less in water than on land, that is to say, physical principles play an important role in this process. If the blue whale can maintain its weight in the water on land, its legs will not be able to bear the weight of its body (if it has legs), and its internal organs will be crushed by its heavy body.

Another reason is that some small creatures help whales grow into huge animals. Blue whales belong to baleen whales. (cetaceans are mainly divided into two suborders: baleen whales and toothed whales. Baleen whales are few but large in size; toothed whales vary greatly in size.) this whale can use the baleen plates of the upper jaw to filter small marine organisms (such as krill) from the sea.

Second, what is the natural enemy of the blue whale?

1. Orcas

Orcas are toothed whales in cetaceans, the top predators in the ocean. As soon as orcas appear, sharks can only stand aside! And orcas have a very high IQ, compared with sharks, it is the gap between adults and children! Of course, orcas have another name that may be even louder. "killer whales" is their second famous name, but in fact, orcas have no record of attacking humans in nature, only orcas kept in captivity in the Ocean Pavilion have records. This may have something to do with how orcas have been kept in captivity for decades!

Compared with the blue whale, the orca looks like a baby brother!

But orcas rarely attack adult blue whales. They attack their cubs. Orcas cooperate with each other to isolate the care between the mother whale and the calf, so that they can quickly kill the cub. Therefore, in this sense, it is not too much for orcas to be a threat to blue whales, but it is not appropriate to say that they are natural enemies. After all, orcas are not capable of reaching this level.

2. Human beings and the garbage produced by human beings

In fact, human beings threaten the survival of all species, and of course, for most civilized countries, very mild measures will be taken to protect those endangered species, but there are often several people on earth who do not kill whales in order to satisfy their selfish desires regardless of the threat of extinction.

In addition, there is more and more marine garbage, which is also driven by human tourism. Some unqualified tourists throw rubbish on the beach. Over time, white pollution will also be eaten by whales.