Lead
"Whales are mammals, and they must have died in a tragic way, usually because they were not alive due to marine pollution, or they were killed by humans."
A visitor preached to his partner at the Whale Herbarium and said that humans are the nemesis of big fish and small fish, and at the same time, he kept slapping whale specimens.
However, the true cause of the whale's death is overshadowed by his arrogant saliva and taxidermic behavior.
However, whales have not been killed by humans, but this is often not the case when whales die, and they can suffocate and drown during the ventilation process.
What are the challenges of whale ventilation?
If it's too old or too weak, they can suffocate to death, and why?
1. Whales are mammals and can also suffocate and drown.
Whales are mammals and need to breathe through their lungs, as well as through their noses.
However, the amount of oxygen required for a single ventilation is relatively large, so there are corresponding challenges when the whale is faced with ventilation.
Just like when ordinary people hit sandbags, although the sandbags are lifeless, with continuous punching and kicking, its center of gravity will continue to change, which will make the sandbags have a lot of pressure on people, and at the same time, they may also drag people down.
In fact, whales have a similar situation, when detecting a tide in the water, the whale will know that there is air, and it will naturally float, but the older the whale, it means that the volume will also become larger, and the whale itself does not have much center of gravity, therefore, the whale will feel very difficult, and it is also possible that when it is more crowded, it will encounter different whales or other objects when it floats, so that it is not easy to stretch out due to the influence of pressure, and it may also be blocked by other objects and cannot float.
Eventually, these squeezes and blockages will consume the oxygen in the whale's body, and they will continue to try to float, so that the whale will eventually run out of oxygen, and eventually they will drown because they cannot float.
However, this is not the case if the whale is young or in good health.
As long as they feel blocked, they will actively choose other upward paths.
However, some whales need to travel a long distance when they are floating, and whales will not be lazy because of this, and do not go that far, and even some whales will use up much more oxygen once they breathe.
In this way, the oxygen consumed will be accelerated.
Especially in the ocean, whales may encounter currents, this crowded situation will be more common, in order not to be blocked, whales will continue to use their movements to open the road ahead, as a result, their oxygen consumption is faster, and eventually they may suffocate and drown because of the oxygen run out.
If you encounter a young whale, you are lucky to meet the whale's Lao Lian, they will arch their backs to let the young whale float, or help them expand the road ahead, ordinary whales once they encounter this situation, they will follow Lao Lian closely and let them lead the way.
So when whales suffocate and drown, the real culprits are themselves, but humans can also exert their influence and lead whales into deadly traps.
2. The evolutionary path of whales.
Whales also breathe through their lungs, but they don't always breathe in the water, but when they need it, they release air from their lungs so that they can bring oxygen into their bloodstream.
However, the ancestors of whales were land-based mammals, and in order to escape from predators on land, they had to go into the water, so that they were able to hide their large bodies and escape well.
In fact, they also breathe through their mouths at first, and some whales breathe through their gills, and some breathe at the same time in both ways, so that when they escape predators underwater, they have to deal not only with predators on the ground, but also from underwater predators.
In this way, the whale can only swim faster, and the whale that has undergone a certain development still selectively retains the two breathing methods of mouth breathing and gills breathing, but the whale chooses to find benefits from it, so that the way of gills breathing is gradually eliminated.
Since then, only mouth breathing is left, but whales are also able to find benefits because their lungs have the ability to separate oxygen from the air so that they can breathe away from the surface and oxygen, which greatly increases their chances of survival.
But at the same time, it also brings the challenge of ventilation, so many whales will die without too much pressure during ventilation, and once they encounter obstacles, they will lose their way, and eventually they will eventually cause whales to suffocate and drown because of the same oxygen run out.
3. Whales' sleeping patterns.
Whales do not lie motionless on the bottom of the sea when they sleep, because then they will face a lack of oxygen, and there is even a possibility that they will be covered with algae, so they will face starvation.
Whales generally use the method of "half-brain sleep", sleeping while keeping swimming, which can save more energy, and secondly, they can also sleep while not losing their way, and can also maintain the "memory" function of the brain while sleeping.
4. The survival path of dolphins and killer whales.
In fact, killer whales and dolphins are also whales, they are also mammals, and they also breathe through their lungs, and they also face the challenge of whale ventilation.
Whales also face the fate of being drowned, because they will also beat the air out of their lungs first to bring in oxygen for themselves.
Dolphins, like killer whales, also use the "half-brain sleep" method, which not only allows them to sleep without worrying about getting lost, but also allows them to swim in the direction while sleeping.
However, this does not mean that cetaceans will not be humans, because they are much larger than humans, but they basically live in remote waters, so it is difficult for humans to catch them for food.
And the whale that is killed the most by humans is baleen whales, because baleen whales taste very delicious as food, but they are also internationally forbidden to kill, so some countries only kill secretly, but they sometimes can have many reasons to cover up, that is, they are already dead whales, and they are dragged up to be specified.
5. Killer whales' predatory behavior.
Killer whales are such a species that they have come up with for food, and they sometimes prey on other whales and dolphins.
Killer whales will generally carefully prey, they will first search in the whale group, find it while swimming while playing with their partners, they will be active in the whale group for about 3-4 days, carefully observe the rules of the whale group, and then swim in the specified direction, to give the owner an unexpected attack.
When the killer whales attack one of the whales in the group, they will swim around the whale, and when they attack, they will gently flick their belly tail outward, and the whales will be very panicked when they see that their partner who has made contact with them has been defeated.
The blue whale was very anxious when he saw that his friend who was swimming with him was defeated, but he continued to move.
Killer whales swim above them, so that they don't have the effect of attacking with their abdomen, and of course they attack with their tails.
The killer whales will be defeated, and in this way, they will give up on continuing the attack.
epilogue
In fact, the survival mode of whales is also the result of adapting to the environment and selection, and if they have not evolved gills breathing, perhaps they will not have a way to evolve and have a better way of survival.
The natural world is so cruel that it will cause some creatures to sacrifice, but it also reflects the ecological balance and evolutionary process.
Therefore, computational biology must learn to compromise, survive the fittest, and at the same time reflect the balance of ecology.
For whales and dolphins, we are more aware of the balance of this heavyweight animal, human beings must protect it well, and there must not be too much damage to the ocean, so as to ensure its survival and human survival.