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Why are animals in the deep sea so big? How are they raised? In fact, there is no such situation for this situation now, and we have not fully figured out such a situation yet.
What you should be able to see is that this is also an evolution over the years, and it is precisely because of this that many people can see this as well. In fact, many people say that this may have a lot to do with the following points. In fact, what we should all be able to see is that this is also a very important point.
The first thing we can see is that the relationship between temperature and temperature has a lot to do with it. The size of the individual of the same animal may increase as the temperature decreases, so we can also see that the individual will be larger in the lower temperature range.
What many people should be able to see is that the size of these animals in the deep sea will be larger, so the difference between these deep-sea animals is actually difficult to use temperature to solve the actual problem. Nor can it be summarized and explained in such a one-sided way. The second one, of course, is the habit of eating.
What we can see in the oceans at different temperatures, in hydrothermal fluids and cold springs, is that the food of these animals in the deep bottom of the ocean comes from the biological remains of animals in the upper ocean. What can be seen in general is that for the remains of the creatures, what can be seen is that the animals will be a little larger.
In any case, I hope we should be able to see that in the living environment, in different living environments, the size of fish in the deep sea will be a little larger. They will be much smaller than the animals in the deep sea. Overall, what can be seen is that many people also like it very much, and for this, many people can also see that this is indeed a very important point.
Either way, hopefully we can all see that.
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Why are deep-sea animals so large? This is a question that has not yet been fully figured out. One way to say this is temperature.
The size of the individual of the same animal tends to increase as the temperature drops, and the deeper the sea, the lower the temperature, so the larger the individual. But the size of these deep-sea "giant" animals has increased by dozens of times, and it is difficult to explain by the difference in temperature. Another way of saying it is diet.
In addition to hydrothermal fluids and cold springs, the food of deep-sea seabed animals is mainly the remains or excrement of organisms that fall from the upper ocean to the bottom of the sea, which is their "food". However, there are few such opportunities, and only large animals are able to eat large quantities at once, endure prolonged starvation, and be able to travel long distances in search of food. Are deep-sea "giant" animals adapted to this "diet"?
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Mainly because they are not disturbed by the outside world, and there are many creatures in the deep sea that can eat, so they grow bigger and bigger.
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The pressure of the deep sea is very high, and the animals of the deep sea have to overcome strong pressure, so most of them are relatively large. The natural environment determines their posture.
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Oceans account for the total amount of water on Earth. It is estimated that 50-80% of life on Earth is found in the oceans. A wide variety of organisms can be found in the seawater, and they inhabit different levels of the ocean.
Thousands of years of evolution have helped them adapt to their surroundings, changing the physical structure of living organisms.
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Why should life in the ocean be bigger than life on land? After knowing the reason, it turned out that it would be easier to grow in the sea.
The living environment is large
As we all know, the area on the ocean is 7 parts ocean and 3 parts land. Then the living environment of marine life is generally much larger than that of our land life. And the oldest creatures in history were found in the sea, and they have developed much longer than humans, and many of their locomotion methods are swimming.
Creatures on land, on the other hand, crawl or walk, so there is a big difference between the two environments affected by gravity. In addition, the marine ecological environment is relatively stable, and the temperature difference is not so large, so it is easy for organisms to grow. The ocean space is also large enough, so it is easier for marine life to live in and space than on land.
There is also a lot of food in the ocean.
Huge marine animals
The largest animal on land is known to be the elephant, but compared to marine life, the elephant is so small, and the largest marine animal is the blue whale. He can weigh up to 180 tons, which is equivalent to more than 20 very large elephants. So we all know how huge sea creatures are as mammals, and how small we are.
And in zoology, this is also called gigantism. However, some people have raised doubts because the snails in the sea are relatively small.
Bone causes
Some people say that we don't have to think about why marine animals are big, but why land creatures are so small. The size of our terrestrial creatures is limited by bones. Because our bones can't bear too much weight, but in the ocean, the burden on the bones is liberated due to buoyancy.
Then there is no restriction on the size of the body, and you can grow as you like. They are also very efficient at eating, they can eat large amounts of food quickly and without much physical exertion. Larger body size can also slow down the rate of their metabolism, which is why they are huge.
It is also possible that the oxygen content in the air is higher in the ocean. However, it should not be fully tenable at this time.
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Because the ocean is larger than the land, and there are more species of life in the sea than on land, the ocean is more suitable for growing large biological species, such as whales.
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Because they have evolved to survive in seawater for a long time, it is estimated that it will be difficult for land creatures to move if they grow so large.
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The world is made up of 70% of the oceans and 30% of the landmass. In the vast ocean, there are many large creatures. The size will be larger than on land. This is also one of the manifestations of biodiversity.
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I really don't know, I haven't understood, and many people have big questions about this issue.
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External factors such as temperature, ocean currents, and buoyancy allow marine creatures to survive on the seabed without worrying about fear, and the effect of buoyancy allows them not to suffer bone pain caused by gravity, and then they grow bigger. Animals on land need to hunt for food or avoid predators, so they must gradually lose their body and weight and become much smaller, coupled with the stability of the marine environment, so that the size and weight of the creatures have increased. <>
The suitability of the temperature allows marine life not to endure severe cold and heat, and the food chain and ecological environment in the ocean are relatively stable, and animals have strong concealment and convenience when looking for food and hiding from predators. In order to digest better, the size of the various organs in the body will be much larger, and the sea creatures need to wait for a long time after eating before the next hunt, which makes them have to increase in size to store food and calories to sustain life. <>
In addition, the currents present in the ocean allow these creatures to absorb more food and nutrients, and the methods of hunting in the ocean are relatively simple, without overly complicated hunting movements and excessive speed, so the larger the size, the stronger the survival ability in the ocean. On the contrary, even if it has strong running speed and escape ability, it is easy to be swallowed by some huge creatures if it is too small, and the survival mode of natural selection has greatly changed the evolution of marine life. <>
Finally, the buoyancy of the ocean allows these animals to avoid the pain of being too large, and the large creatures are more intimidating in the ocean. However, the creatures on land need to make escapes, and they are too large to be clumsy, and they suffer physical pain, which makes it difficult for them to grow larger. These factors determine their size, and this can be understood through the observation of natural laws and real conditions.
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A: It can't survive for a long time. Reason: First, the main food of sea snakes is sea tents and foreign creatures, and there is no food on land that sea snakes love to eat; Second, sea snakes are more suitable for marine life due to the genetic and long-term evolution of the species.
Sea snakes prefer to inhabit the shallow waters around continental shelves and islands, and are rare in open waters with water depths of more than 100 meters. Some of them prefer to stay in sandy or muddy mud bottom mixed water halls, while others prefer to move in the clear water around coral reefs. Sea snakes dive at different depths, some are deeper, some are shallower.
Someone has seen a sea snake at a depth of forty or fifty meters.
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The ocean can make them obese because they will become very fat after being immersed in water for a long time, and this size affects them in particular.
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The largest animal on land is the elephant at present. An elephant weighs up to ten tons and is seven or eight meters long, which is many times larger than humans don't know. But in the ocean, there are many animals that are larger than elephants, such as the blue whale, which can reach more than 30 meters in length and weigh 150 tons, which is more than ten times that of elephants.
There are many animals the size of blue whales in the ocean.
The last reason is that it is easier to hunt food in the deep sea. There are many nutrients in the ocean, and a well-established food chain has been formed for thousands of years, so that animals can survive better. Animals on land are easily affected by the external environment, freezing or natural disasters, which may cause trouble for animals to forage, and if they do not eat well, they will naturally grow slowly, and even many animals will become extinct very early for various reasons.
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Because large animals in the deep sea are rarely affected by some natural disasters, and large animals on land are extinct in natural disasters again and again, there are still some differences between land and sea.
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There are two answers to this question, the first is temperature, the size of the individual of the same animal, which increases with temperature, the deeper the sea, the lower the temperature, so the larger the individual. The second type of food is that deep-sea food is not abundant enough, and only large animals can eat a large amount at one time.
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Yes, the ocean is more stable in temperature than on land, and ocean currents bring a lot of food to meat-eating fish, making it relatively easy for land animals to get food.
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That's it, eating the water and salt of the sea. Swimming in them every day makes them big and fat, so they are much fatter than us, and that's why it's different.
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Because the resources of the deep sea are very abundant and there is a lot of space, while the resources on land are very limited, the animals of the deep sea can grow very large, while the land is rarely that large.
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The reason why the deep-sea animals are so big is because they are affected by the high pressure on the seabed, and the reason why there is no such big animal on land is because there is no pressure in the sea on land.
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It is related to the temperature feeding habits, the sea is deep, the temperature is low, and the size is large, so that large animals can eat a lot of things at once, endure prolonged hunger, and go in search of food.
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The answer to this question is actually very simple, when you are in the water, do you feel a force dragging you up? Even people who are very bulky on land are able to pass buoyancy in the water, and there is a very flexible feeling. Actually, that's the answer to the question.
In general, marine animals.
It is very common to be larger than land animals, and the largest animals on land are elephants.
However, the weight of the elephant is only 8 to 10 tons, the height is 3 to 5 meters, and the body length is between 5 and 8 meters, while the weight of the blue whale can be up to 150 tons, which is equivalent to at least 15 elephants, and its body length can reach more than 30 meters.
This is because land animals need to rely on bones to bear the weight of the body, but also rely on ** to wrap the organs and muscles in the body, which causes pressure on the bones and **, the larger the body, its relative surface area.
The smaller the proportion to its volume, the more important the internal organs and tissues are for the skeletal structure, muscle tissue.
and **, the higher the requirements.
For example, a cow or a sheep is almost twice as long as a sheep, but the weight of an ox is about eight times that of a sheep, so the movements of a cow are more clumsy than that of a sheep. So when comparing cattle to elephants, elephants are more than twice as many as oxen, so elephants are much heavier than oxen, and they look more bulky when they move.
In the water, the specific gravity of the animal's body is about the same as that of water, so the animal in the water can completely rely on the buoyancy of the water to carry the weight of the body, so the animal can not even feel the weight of the body in the water, so its body structure does not have how to resist the earth's gravity.
So fish and cetaceans are streamlined bodies, and their body growth is almost unlimited, such as whales.
There are no chromosomes in the genes that limit the growth of the body, so the whale can grow so big, because there is no need to deal with body gravity, and the body is protected by water pressure, so they don't have to worry about the body being too big to move, and the bones and ** can not support the problem.
It is precisely because of the different growth environments that different organisms have different body types. Of course, the main factor behind this is the gravity generated by our planet.
and atmospheric pressure.
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