Joke Collection Website - Cold jokes - What are the habits of seals?
What are the habits of seals?
seal
Seals are carnivorous marine animals and mammals. Their bodies are streamlined and their limbs become fins, which is suitable for swimming. Seals have a thick layer of subcutaneous fat to keep warm, provide food reserves and generate buoyancy. Seals live in the sea most of the time, and only live on land or ice when they are unhairing and breeding. Seals are distributed all over the world, especially in cold polar waters. Their food is mainly fish and shellfish. Sea lions and walruses are close relatives of seals. They have ear shells, and their hind limbs can rotate forward to support their bodies.
Seals have shorter forelegs than hind feet, and hairy flippers have nails, which are five toes. Ears become extremely small or degenerate into only two holes, which can be opened and closed freely when swimming. When swimming, most people lean on their hind feet, but they can't bend forward. Their heels have degenerated, unlike sea lions and seals, so they can't walk. So when they walk on land, they always drag their heavy hind legs and bend over to crawl, leaving lines of twisted marks on the ground. Mainly distributed in the Arctic, around the Antarctic and temperate or tropical seas, there are 18 genera and 19 species known at present. Seals are distributed all over the world and are found in the cold polar seas. Antarctic seals live in Antarctic ice sources because of their small number. Antarctic seals have been listed as international protected animals.
Seal classification
There are 18 species of seals in the world, 7 species in the Arctic and 4 species in the Antarctic. But in number, there are not as many seals in the Arctic as in the Antarctic. At present, there are many kinds of seals in the world's oceans, including 13 genus and 18 species. Antarctica has the largest number, followed by the Arctic Ocean, the North Atlantic Ocean and the North Pacific Ocean. Specifically divided into the following genera:
1,PhocaLinnaeus。
The body length of the spotted seal 1.5-2m, the maximum weight of the male 150kg and the maximum weight of the female 120kg. Spotted seals are widely distributed, mainly in high latitudes in the northern hemisphere, and mainly in Bohai Sea and Yellow Sea in China. They mainly prey on fish, but also eat cephalopods and crustaceans.
2. The bearded seal is ErignathusGill.
Bearded seal, also known as bearded seal, is named after its thick and hard beard on its nose and mouth. The longest beard is 14 cm long, and there are about 106 beards on both sides of the upper lip. The male is 2.8 meters long and the female is 2.6 meters long, with an average weight of 400 kilograms. The whole body is brownish gray or grayish brown, the middle line of the back is the darkest, and it gradually becomes shallow towards the abdomen without markings.
Bearded seals are mainly distributed in the Arctic Ocean, the North Atlantic Ocean and the North Pacific Ocean, but not in the southern hemisphere. 1972, a male beast with a body length of 176 cm and a weight of 7 1 kg was captured in the sea area of Pingyang County, Zhejiang Province.
Bearded seals mainly prey on benthic animals such as shrimp, crab, mollusk, mackerel and sole, but they also prey on squid.
3. The gray seal belongs to HalichoerusNilsson.
The male is about 3 meters long and weighs about 300 kilograms, while the female is about 2.3 meters long and weighs 250 kilograms. The male adult animal has a thick neck with 3-4 wrinkles, which is one of the differences between it and the spotted seal. Gray seals are widely distributed in the Arctic Ocean and the Atlantic Ocean, and the existing number is about 25,000-50,000.
Gray seals eat all kinds of food, but mainly fish.
This ringed seal is called PusaScopoli.
This genus includes: ringed seal, ringed seal in Lake Belga, ringed seal in Caspian Sea. The ringed seal is the smallest of all seals. The big male animal is 1.4m long, weighs 90kg and has a cat-like face.
Ringed seals have a wide range of food habits, from invertebrates to fish, totaling more than 75 species. Its main natural enemies are white bears and polar sharks.
Ringed seals are mainly distributed in the whole Arctic Ocean, Sea of Okhotsk, Bering Sea, Baltic Sea, Lake Ladoga, Lake Belga and Caspian Sea.
5. Striped seals belong to the genus HistriophocaGill.
This kind of seal is also a small species of seal. Male is dark gray blue purple or dark gray red purple, with a wide ring-shaped leucorrhea on the neck. Female animals are lighter in color, basically dark taupe or dark taupe. Striped seals only inhabit the northern hemisphere, mainly distributed in the Bering Sea and the Sea of Okhotsk. They like to live on ice floes or islands far away from human habitation, and do not form large groups. Their food is mainly cod and cephalopods.
6. Saddle seals belong to Pa Gofel Gray.
Saddle seals are also called Greenland seals. It is about 1.8m long and 180kg heavy. The whole body is white or brown-gray, and there is a "∧"-shaped black belt from the shoulder on the back to the tail, which looks like a saddle, hence the name saddle print.
It is only distributed in northern Russia, around Greenland and northern Canada and Newfoundland in Arctic waters, and mainly preys on fish, crustaceans and mollusks.
7. Monkeys belong to MonachusFleming.
The monk's seal head is round and covered with short hair, which looks like a monk's head, hence the name monk's seal. This kind of seal has become an extremely rare animal, which is only distributed in Shunfeng Island, Caribbean Sea and Black Sea in the Hawaiian Islands between 20 and 30 north latitude.
8. Weddell seal belongs to thin seal
Weddell seals like to live on fixed ice connected to the Antarctic continent. It is the southernmost species of mammals and a common seal in Antarctica. Its diving ability is very strong, it can dive to a depth of more than 600 meters for 43 minutes, and its diving ability is the highest among pteropods.
Feed on fish (Dufu fish) and squid.
9. The Ross sea leopard belongs to the order Compound Eye.
Ross sea leopard is the least number of Antarctic seals. Its neck is very thick, and when it contracts, the skin of the neck can form big wrinkles, and its head can be retracted, almost completely hidden in the wrinkles of the neck, and it can also make a sound like a bird's call. Mainly distributed near the ice floes around the Antarctic continent.
10, leopard seal hydrotalcite
Leopard seals not only have leopard-like spots, but also look like leopards in temperament. It is the fiercest seal. It not only preys on fish and squid, but also eats warm-blooded animals, penguins and other birds, even whales and other seals. From the ice floe line in Antarctica to Australia, New Zealand, South America, the southernmost tip of Africa and nearby islands.
1 1, the crested seal belongs to CystophoraNilsson.
When a crested seal encounters intimidation or excitement, the front end of its nose and mouth can expand into a saccular protrusion, so people call it a saccular seal.
Mainly distributed in the North Atlantic and Arctic waters, the main food is fish.
12, the pictographic seal is MiroungaGray.
The pictographic seal is the largest type of seal family, and its prominent feature is the nose of male animals, which will swell when excited or angry. This category includes:
The southern elephant seal and the northern elephant seal, with a maximum length of 6.5 meters and a weight of 3,600 kilograms, are the largest animals in the whole pteropod.
13, crab-eating seals belong to LobodonGray.
Crab-eating seals mainly feed on krill, and their feeding habits are similar to those of baleen whales. Like to live in groups, they are agile and quick on the ice, mainly distributed around the Antarctic continent, and are also endemic animals along the Antarctic coast.
Living habits
Seals live in cold temperate waters, and spend the rest of their time swimming, foraging or playing in the sea except when they need to go to the ice, beach or rocks during spawning, rest and molting. Breeding period is not clustered. The cubs form a family group after birth, and the family group ends after lactation. Giving birth on the ice, when the ice melts, the cubs begin to live independently in the water. A few individuals whose reproductive period has been postponed have to give birth on the coastal beach. The main food is fish, but also crustaceans and cephalopods.
Seals are the most widely distributed pteropods, and there are seals' footprints from the South Pole to the North Pole and from seawater to freshwater lakes. Antarctic seals have the largest number, followed by Arctic Ocean, North Atlantic Ocean and North Pacific Ocean. Seals are a large family of pteropods, with 19 species in the world. Among them, there are elephant seals with expandable noses; The head is shaped like a monk's seal; Striped seals with white stripes; Spotted seals; A crested seal with comb-like black skin on the male head. Seals are very small, only 1.5m ~ 2.0m long. The maximum individual weight is 150kg, and the female is slightly smaller, weighing about 120kg. All seals in the world are spindle-shaped and suitable for swimming. Their heads are round and look like domestic dogs.
In the seal pool of seaside park, seals swim and play all day, which is really cute. If trained, it will also perform programs such as playing ball games. Seals are round and spindle-shaped, with mottled body color, sparse fur and thick subcutaneous fat, and look fat. The hind feet always extend backward, just like the flippers of a diver. When you start swimming, your feet swing left and right in the water, pushing your body forward quickly. From the head of a seal, it looks like a domestic dog, so many areas call it a seal. Sometimes it climbs to the rock, and then its movements are particularly clumsy, and its swimming limbs can only play an auxiliary role. The crawling action of seals is very interesting, so it often causes laughter from the audience.
Under natural conditions, seals sometimes wander in the sea and sometimes go ashore to rest. When landing, choose the sandbar in the inner bay and the rocky reef on the shore that can be submerged by high tide. For example, there are many large groups of seals in China, Panshankou, Liaoning and miaodao islands, Shandong. Seals swim very well, with a speed of 27 kilometers per hour. At the same time, they are good at diving. Generally, it can dive about 100 meters, while the Weddell seal in Antarctic waters can dive more than 600 meters deep for 43 minutes. Seals mainly prey on all kinds of fish and cephalopods, and sometimes they also eat crustaceans. It eats a lot. A seal weighing 60-70 kilograms eats 7-8 kilograms of fish a day.
The seal society practices polygamy. In estrus, male seals start chasing female seals. A female seal is often followed by several male seals, but the female seal can only choose one from the male seals. Therefore, it is inevitable that there will be fights between male seals, and violent seals will bring fierce harm to each other: biting each other with their teeth will tear the fur of some male seals and make them bleed. After the battle, the winner took the female seal into the water and mated in the water.
economic value
Seals have high economic value, delicious meat and rich nutrition; Leather is tough and can be used to make clothes, shoes and hats to resist the cold; Fat can be used to refine industrial oil; Testis, penis and spermatic cord of male seals are extremely precious medicinal materials, commonly known as seal kidney, which is a traditional Chinese medicine prepared from other drugs, and has the special effects of strengthening the brain, tonifying the kidney, promoting sperm production, enriching blood and strengthening yang. Intestines are excellent materials for making strings; The liver is rich in vitamins and is a tonic with high value; Teeth can make exquisite handicrafts. Because of this, seals were severely killed. In particular, the United States, Britain, Norway, Canada and other countries send a large number of well-equipped seal fishing boats out to sea every year to hunt, and the number of many seals, especially Greenland seals and crested seals, is greatly reduced.
Marine eel family
Members of the seal family are obese, with thick neck and round head after subcutaneous fat, and the hind limbs and tail are connected together and always backward. They can only crawl on land with the help of their bodies, which is very clumsy, but they are quite flexible underwater, and they are good at deep diving, and can dive to the depth of hundreds of meters. The members of the family Sealidae can be roughly divided into two categories: northern and southern, and can also be divided into the subfamily Pseudoseal and the subfamily Monoseal. The distribution of seal subfamily is basically limited to the northern hemisphere, while seal subfamily can also be seen in the southern part of the northern hemisphere. Northern seals are usually smaller, no more than 2 meters long, mainly concentrated in the Arctic Ocean, and can also be seen in various waters in the northern temperate zone. Among the northern seals, people are most familiar with the spotted seal (Phocavitulina) and the spotted seal PhocaPhocalargha, which are distributed in the North Atlantic and the North Pacific. The latter can be found in the Yellow Sea and Bohai Sea in China. Among the northern seals, Lake Baikal seal Phoca(Pusa)sibirica is the only freshwater seal distributed in Lake Baikal, which is still unknown. Another kind of seal distributed in lakes is the Caspian Sea seal (PUSA), which is distributed in the Caspian Sea, the largest saltwater lake in the world. It may have come here before the Caspian Sea turned into a lake. Southern seals are usually larger. The largest southern elephant seal, Miroungaangustirostris, is the largest member of pteropods and carnivores, with a male weight of about 3 tons.
The southern elephant seal is distributed in the Antarctic and sub-Antarctic, and the other northern elephant seal Miroungaleonina is distributed on the west coast of North America, which is far from the southern elephant seal, but they are very similar. Elephant seals are not only huge, but also have retractable noses, which are quite similar to elephants. Elephant seals are sometimes called walruses, which are easily confused with walruses of the genus Walrus. Among the southern seals distributed in the northern hemisphere, there are several kinds of monk seals Monachus, including the Mediterranean monk seal Monachusmonachus, the Hawaiian monk seal Monachusschauinslandi and the Caribbean monk seal Monachustropicalis. They are seals adapted to warm waters, and now the number is very rare, among which the Caribbean monk seal has become extinct. The most special southern seal is the leopard seal Hydrurgaleptonyx from the south temperate zone to the South Pole. Leopard seals are the only seals that feed on warm-blooded animals. It has a big mouth, swims fast and preys on all kinds of seabirds and other marine animals. Unlike other seals, leopard seals mainly paddle with their forelimbs, not their hind limbs. Lobodoncarcinophagus is a crab-eating seal and a close relative of leopard seal. They are similar in size and distribution range, but far from each other in habits. Crab-eating seals do not eat crabs, but feed on krill, which appears in large numbers in the southern waters. Krill provides abundant food for animals in the southern waters, and crab-eating seals are also one of the largest seals. There is also a kind of seal called seal, named after its rough skin. Spring is their breeding season.
seal oil
Main raw materials: seal oil, gelatin and glycerin. The seal oil in each capsule contains: DPA (C22: 5) 4.15% EPA (C20: 5) 7.53% DHA (C22: 6) 9.48% Omega3 PUFA 22.59% squalene 2.52% other fatty acids 53.73%. Storage method twice a day: sealed, dry and cool. Origin: biopotency Enterprise, Canada. O-Power seal oil is rich and comprehensive in ω-3 polyunsaturated fatty acids, which is very important for human health. Its composition and efficacy mainly include: it is rich in EPA (eicosapentaenoic acid), and is known as "vascular scavenger". It has the functions of preventing arteriosclerosis and cardiovascular embolism, reducing hypertension and cholesterol, inhibiting platelet aggregation, and has health care functions such as coronary arteriosclerosis, thromboembolism, cerebral apoplexy, cerebral hemorrhage, cerebrovascular disorder, hyperlipidemia, blood vessels, and accelerating microcirculation. Rich in DHA (docosahexaenoic acid): commonly known as "brain gold", it is an indispensable substance for the development of brain function and optic nerve function, which can promote intellectual development and improve IQ. Children can help the development of nervous system and intelligence, teenagers can help nerve health and enhance memory, adults can improve work efficiency, and the elderly can take it. Rich DPA (docosapentaenoic acid) is helpful to control and treat Alzheimer's disease: rich in human milk and dolphin oil, fish oil and lacking in various foods. When babies lose breast milk, they lose DPA, which is 20 times more effective than EPA 10. Can promote and improve human immunity. DPA and DHA play a synergistic role, and have a significant effect on type II diabetes, rheumatoid arthritis, psoriasis, ulcerative enteritis, etc. Squalene is an effective natural antioxidant that animals such as deep-sea fish oil do not contain, and it has obvious anti-cancer effect. Its unique and powerful anti-free radical effect has a magical effect on keeping skin moist, smooth and elastic. Excellent quality of o-power pure seal oil: rich and comprehensive Omega0-3 0-3 polyunsaturated fatty acids: Generally, fish oil only contains EPA and DHA, and little or no DPA, which is an indispensable component to improve human immunity. Seal oil not only contains EPA and DHA, but also contains rich DPA, which is an indispensable nutrient in human milk. It plays an important role in the immune development and intellectual development of newborns. Pure oil quality: fish oil is usually extracted from fish head, fish bones and fish viscera, and the extraction process is complicated, which inevitably brings in various harmful substances. Seal oil is a natural oil extracted from seal oil, which is very pure and hygienic. Special soluble substances: seal oil contains human-specific warm and lipid soluble substances, not ordinary cold-blooded fish oil. It is a very precious nutrition very close to human milk. Rare resources: Arctic Greenland seal is a cold-tolerant mammal. It lives near the frozen Arctic Circle where the temperature is as low as MINUS 40 degrees, and mainly feeds on precious Arctic cod and cold deep-sea fish and shrimp. The reproductive ability is extremely strong. After more than 20 years of research, scientists have found that Arctic Greenland seals are rich in long-chain multi-carbon unsaturated fatty acids Omega-3. This fatty acid is very important for human health and longevity. Because the Canadian government has formulated a quota killing policy, this natural resource is more precious. Seal oil is the best source of Qmega-3 polyunsaturated fatty acids needed by human beings in the world at present, and it is the best natural high-grade tonic for human beings in 2 1 century. Why do you need to take seal oil? Long-chain polyunsaturated fatty acids have significant effects on preventing cardiovascular diseases, anticancer, anti-inflammatory and anti-aging. Seal oil reacts with pancreatic fatty acids during human digestion, so seal oil can be fully absorbed by human body. O-power's pure natural Arctic harp seal capsule has obtained the export food production license from the Canadian government. Rich Omega-3 can be directly absorbed by human small intestine, not decomposed by liver, and has no toxic or side effects. Long-term use does not harm the liver and kidney, and truly does not harm the liver. It is the perfect crystallization of modern cutting-edge technology and the highest quality Arctic harp seal. The Federal Institute of Experimental Biology (FASEB) warned that in order to maintain the best health and prolong life, everyone should consume at least 1-2 grams of Omega-3 every day, but now people only consume 0.3-0.5 grams of Omega-3 from food every day, which is less than 50% of the standard. Background: In the early 1970s, scientists found that Eskimos living near the Arctic Circle consumed a lot of saturated fatty acids and cholesterol (more than twice as much as others), but the contents of very low density lipoprotein (VLDL) and cholesterol in their notes were very low, and their cardiovascular and cerebrovascular diseases, hypertension and cancer were also very low, because Eskimos often ate Arctic harp seal fat in their daily lives! With the progress of modern civilization, people's appetite has completely changed. The ω-3 long-chain multi-carbon unsaturated fatty acids obtained from primitive game, wild vegetables and hunting decreased sharply. The content of Onega-3 in artificially planted and raised agricultural and livestock products is extremely low, and at the same time, a large amount of vegetable oil containing high omega-6 is consumed, which further promotes the change of Omega-6 and omega-3 from the original 1: 65438. Coupled with intense work and high pressure, bacterial erosion deepens the imbalance of these two unsaturated fatty acids in the body, making them unable to work normally with the cellular functions of the whole body, which will eventually lead to the decline of cardiovascular, respiratory, digestive and immune functions and easily induce cancer of cells and tissues. For children, this serious imbalance will lead to the dysplasia of the brain and the entire nervous system. According to the World Health Organization, the ratio of ω-6 to ω-3 in modern human body should be reduced from the current 30: 1 to 4: 1 or at least to10/. The most effective compensation method is to directly supplement nutrients with high EPA and DPA. The subcutaneous fat of seals contains not only EPA and DHA, but also DPA.
EPA (eicosapentaenoic acid): commonly known as "vascular scavenger", it has the functions of preventing arteriosclerosis and cardiac vascular embolism, and reducing hypertension and cholesterol. Can be used for cardiovascular and cerebrovascular diseases, such as coronary arteriosclerosis, cerebral apoplexy, cerebral hemorrhage, cerebrovascular disorder, hand and foot paralysis, palpitation, etc.
DHA (docosahexaenoic acid): commonly known as "brain gold", is an essential substance for the development and function of brain tissue and optic nerve, which can promote the intellectual development and IQ improvement of infants, enhance memory and prevent and treat Alzheimer's disease.
DPA (docosapentaenoic acid): human milk and seal oil are high in content, but fish oil and other foods are lacking. Can promote and improve human immunity, and has therapeutic effects on diabetes, rheumatoid arthritis, psoriasis, enteritis, etc.
Squalene (squalene): A natural antioxidant, which has anti-cancer and beauty effects, and can effectively keep skin moist, smooth and elastic.
Fat-soluble active substance: It has special effects on improving human immunity and regulating insulin secretion. Can be used for preventing and treating rheumatoid arthritis and lupus erythematosus. It can also inhibit the formation of diabetes.
First, seal oil benefits mankind.
For a long time, the world medical community has found that Eskimos living near the North Pole rarely suffer from cardiovascular and cerebrovascular diseases, hypertension and cancer. In 1970s, some medical doctors in Canada came to the conclusion that Eskimos' diet mainly consisted of seal oil, seal meat and fish. Because these foods are rich in OMEGA-3 unsaturated fatty acids, they do not suffer from these "civilized diseases" of modern people.
2. What ingredients does seal oil contain?
Seal oil is a precious nutritional tonic, which is rich in ω-3 unsaturated fatty acids extracted from seal adipose tissue. Seal oil contains about 20% ~ 25% ω-3 unsaturated fatty acids, which is the highest in natural animals. At the same time, seal oil contains a certain amount of squalene and vitamin E.
Third, add omega -3, what is the difference between eating seal oil and eating fish oil?
(1) Natural seal oil contains about 20% ~ 25% ω-3 unsaturated fatty acids, which is much higher than natural fish oil.
(2) Seals and humans are mammals, while fish are cold-blooded animals. The position of ω-3 unsaturated fatty acids in mammals is different from that in fish. OMEGA-3 in mammals ranks first and third, while fish ranks second. In the process of human digestion, the first and third OMEGA-3 easily react with lipase and decompose into free fat, which is more easily absorbed by human body. Therefore, the absorption and utilization rate of seal oil is higher than that of fish oil.
(3) Seal oil contains 5-6% DPA, while fish oil contains almost no DPA. It is found that DPA is very important for children's growth, and its efficacy is more than ten times that of DHA, commonly known as brain gold.
(4)ω-3 unsaturated fatty acids are easily oxidized into peroxides due to unsaturation, which is harmful to human body. Seal oil contains a natural antioxidant, which can prevent seal oil from being oxidized under the high temperature cooking condition of 190 degrees. Fish oil does not contain antioxidants, and it is very easy to deteriorate at room temperature.
(5) Seal oil contains 2-3% squalene, which has the function of preventing and treating cancer. At the same time, it has the function of activating cells, effectively protecting the skin, effectively inhibiting the absorption of bad cholesterol in food and accelerating its metabolism.
(6) Seal oil contains almost no cholesterol, while most fish oils contain a lot of cholesterol.
Seal oil is the most natural and nutritious marine biological product, which absorbs the essence of Arctic life, improves the microcirculation system and strengthens the defense immune system. The seal oil extracted from Canadian Arctic harp seal is mainly composed of ω-3 unsaturated fatty acids, shark horn and vitamin E. The efficacy of ω-3 has long been recognized by the medical community, and it has health care functions such as purifying blood, balancing blood pressure, repairing blood vessels and enhancing body resistance. About 20%-25% of seal oil is OMEGA-3, which is the highest among natural animals and far exceeds the content of general fish oil. In addition, seal oil also contains 2-3% horn shark, which can effectively protect the skin, at the same time effectively inhibit the body from absorbing bad cholesterol released by food and accelerate metabolism.
- Previous article:How to calculate profit in a commissary
- Next article:What humorous jokes are there in life?
- Related articles
- The relationship between Song Huizong, Song Qinzong and Song Gaozong. Who was Song Huizong’s prime minister?
- Qin Terracotta Warriors and Horses Tour Guide
- Composition materials on "My heart was taken away by the Lord"
- The number of appearances of Yoko in Cherry Maruko
- Why does the person who washes your hair in the hair salon ask if the scalp itches?
- English short stories or jokes are badly needed! ! !
- What are the Yuan songs?
- What principles should be followed in handling personal information according to Article 1035 of the Civil Code?
- Dilraba basked in Long song just playing with an expression pack. Why is the "just play" terrier so hot recently?
- Wang Dazhi, who was "delayed" by Dong Jie, grew fat and became a greasy uncle. What do you think?