In the 3.8 billion years of life evolution history of the earth, it has experienced more than 20 species extinction events of all sizes, there are species extinctions and new species are born, and different life is bred in different ecological environments, very typical such as the Australian continent, the geographical environment is relatively independent, so there are many unique species to survive.
There are more representative species in different countries on the earth, such as giant pandas on the mainland, marsupials in Australia, and lions and giraffes on the African continent.
Recently, the marine mammal research team of the Institute of Deep Sea of the Chinese Academy of Sciences published a paper saying that after many scientific expeditions, it was finally determined that there may be a breeding field for sperm whales in the South China Sea on the mainland, and sperm whales will live permanently, and China has finally ushered in these marine behemoths.
Some time ago, in the Shipu sea area of Xiangshan, Ningbo, Zhejiang Province, there was a male sperm whale stranded, with a length of 19 meters and a total weight of more than 50 tons, after the efforts of the relevant departments to rescue, the final stranded sperm whale was dragged away from the shallow water area after the high tide at night.
After about a night, the rope was finally released at about 6 a.m. the next morning, and the sperm whale was successfully rescued.
Just a week after the sperm whale was sent back to the deep sea, a fishing boat in the sea east of Shipu, Ningbo, found a huge sperm whale carcass, which already had a distinct odor after approaching, and some people thought that it may be the sperm whale that was rescued before, and finally did not escape the fate of death.
Everything has been determined, after all, sperm whales are marine giants living in the deep-sea world, and being able to run to shallow waters on the shore is a problem in itself.
Sperm whale - the largest toothed whale
Sperm whale is one of the most widely distributed whales, in the biological classification of whales are mainly divided into two categories, more common such as toothed whales, finless porpoises living in freshwater, etc., are considered a kind of tooth whale, generally speaking, relative to baleen whales, toothed whales are smaller, all dolphins in the ocean are considered toothed whales, as the name suggests, there are mature teeth, which can be used for hunting and eating.
Marine giant panda killer whales, as well as deep diving small expert sperm whales are considered toothed whales, of which sperm whales are the largest toothed whales. In the baleen whale family, there are some large people, such as blue whales and humpback whales, who need to filter the seawater through the whiskers to eat.
There are many interesting things about sperm whales, the first of which is their super deep diving ability. As a mammal, sperm whales also need to breathe with the help of their lungs, so they should come to the surface of the water regularly to breathe. According to this characteristic, large whales should be active in the upper layers close to the sea surface.
But sperm whales don't. They prefer a depth of 1000-2000 meters in the deep sea world, because at that depth there are foods that sperm whales are familiar with and like, such as king squid and sour squid. It is because of these foods that the highly valuable tarragon is produced in the belly of the sperm whale.
Ambergris is of high value, and there are often cases where fishermen pick up large chunks of complete ambergris worth millions of dollars.
The marine mammal research team of the Institute of Deep Sea of the Chinese Academy of Sciences, in the south China Sea to investigate the central and northern waters, from March to August in different seasons of sailing, a total of more than 100 groups of cetaceans and dolphins were found, of which the population of sperm whales was about 9 groups, and the average number of clusters was 5.
Seven of the 9 sperm whale populations are bring, and the juvenile sperm whale populations contain at least 1-2 juvenile or crushed adult individuals, so scientists speculate that these sperm whales may have begun to settle in the central and northern waters of the South China Sea.
Sperm whale populations are generally divided into two categories, one is the male single family, before the arrival of the breeding period, male sperm whales like to gather in all the common life. The second is that female sperm whales live with their cubs or sub-adult individuals, and the multiple groups of sperm whales found by mainland scientists in the South China Sea are the breeding sperm whale groups.
Therefore, scientists speculate that the waters related to the South China Sea are breeding and hunting places for sperm whales. As the "umbrella animal" of the marine ecosystem, the protection of sperm whales is also conducive to the protection of other rare marine organisms.
Can ambergris freedom be realized?
Ambergris is a very precious and rare substance, most people know that ambergris is produced by sperm whales, but the presence of sperm whales does not mean that there must be ambergris. The way ambergris is produced is mainly the hard things excreted or vomited by sperm whales, which are the products of sperm whales eating some deep-sea mollusks.
Some hard substances are swallowed into the stomach by sperm whales into the digestive system, because the hard objects have a certain damage and damage to the digestive system, they themselves will secrete some mucus to wrap these hard things, and over time they are spit out or excreted.
The formation of ambergris takes a long time, even if there are sperm whales in the South China Sea, it does not mean that ambergris is continuous, after all, it still has a certain chance of formation, even if it falls in the ocean, it takes a long time to soak or shine in the sun, and eventually there may be ambergris.
But in any case, it is a fortunate thing that sperm whales appear in the waters of the South China Sea on the mainland and often "live".
Text/science black hole, image source network intrusion deletion.