You can never imagine that the blue whale's lung capacity can reach 5,000 liters, and what is even more unimaginable is that the blue whale can discharge about 2 tons of feces at one time, which is a gift from nature for marine life .
Blue Whale
It is not only the largest cetacean , but also the largest animal in existence. is the largest mammal to date.
can reach 33 meters in length and weigh 181 tons.
Its weight is equivalent to more than 25 African elephant , or the sum of the weight of 2000 to 3000 people.
Although its size is huge and causes slow movement, its tail is particularly flexible, with the moving speed up to 28 kilometers per hour.
The body of the blue whale is so huge that there are 2,000 kilograms of one tongue, and 50 people can stand on its tongue. The skull has 3,000 kg, the liver has 1,000 kg, and the heart has 500 kg, which is about the size of a car. The blood circulation volume reaches 8,000 kg, etc.
Its power is also amazing. The power emitted by is about 1500~1700 horsepower. can be regarded as a well-deserved "big Mac" and "strongman" in the animal world.
It will expose the water to breathe every 10 to 15 minutes, and the lung capacity of can reach 5,000 liters.
When you breathe on the plane of the Shanghai area, you can spray out a vertical column of water 9 to 12 meters high, like a "fountain on the sea". Even if you can see it thousands of miles away, also makes a loud sound like a train's whistle, which people call it "squirt tide".
is called: the elegant big eater in the sea
The intersection of warm sea water and cold sea water, is an excellent habitat for blue whales, which usually feed on plankton and krill.
The stomach of the blue whale is divided into four.
The first stomach is caused by the swelling of the esophagus, so the appetite is very large. can swallow about 2 million krill at a time, and it takes 4,000 to 8,000 kilograms per day. If there are less than 2,000 kg of food in the belly, you will feel hungry.
Because the Nan Whale eats too much each time, it is also very shocking when it excretes.
Once it is time to excrete, if is within a radius of 50 meters, the sea water will be converted into another color, and other fish in dare not approach it. Because the feces it discharges weigh up to two tons, this is a kind of "scented sea water" within this range.
What is the function of blue whale feces?
The feces of whales are not only defensive, but also rich in nutrients and are natural fertilizers for the ocean.
can help seawater absorb more carbon dioxide , thereby promoting the improvement of marine climate and global warming .
Since blue whales eat krill, it is this that makes cetaceans an important part of the marine ecosystem.
Blue whale feces are mainly composed of digested krill, rich in large amounts of iron and nitrogen, which can stimulate the growth of bacteria and phytoplankton , and provide sufficient food for fish and krill.
research survey shows that whales bring nutritional supplies to the surface waters of the ocean, and can provide more food for fish and krill by stimulating the growth of phytoplankton.
At the same time, phytoplankton can also absorb carbon dioxide from the atmosphere, contributing to controlling global warming.
Not only that, the study also found that the iron content in the feces of whales is more than 1,000 times the iron concentration in seawater, so whales are not only an ecological engineer of the marine circulation system, but also a "fighter" among engineers.
To put it bluntly, the feces of blue whales have a very great effect, not only for marine life, but also for the atmospheric environment.
In the above we said, it can contribute to controlling global warming.
It is understood that due to global warming, the ice floes in Hudson Bay in Canada melt rapidly in summer. The polar bear living here has to go ashore because it cannot get close to the ocean to prey on seals, and polar bears are facing the threat of starvation.
It can be said that Earth's climate is a crucial and complex system. is difficult to understand because of its randomness and disorder, but we need to learn more about them and protect the earth here.
Go back to whale . Blue whales were seen in almost every sea area in the world in the early 20th century, and their number was quite large at that time.
But what about 40 years later?
What do they face?
The hunting of whalers makes them almost extinct.
until 1966 it was fully protected.
As whaling ends, the number of blue whales begins to slowly recover, and was estimated to be between 10,000 and 25,000 heads in 2014. Currently, the International Union for Conservation of Nature lists blue whales as a red "endangered species".
But, another kind of pollution has entered the ocean.
The garbage from human society enters the sea and causes pollution to the ocean. PCBD chemical will gather in the blood of blue whales, resulting in poisoning and premature death of blue whales.
The noise caused by the increasing number of marine transportation has masked the sound of blue whales, making it difficult for blue whales to find a mate. All of these have led to a decrease in the number of the Blue Whale clan!
Therefore, at this time we should call on everyone to protect marine life and the environment!
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