The world is so big, why don t some animals in the sea have eyelashes?

The eyelashes have no effect on their own development, so the eyelashes degenerate. The formation of each organ of living organisms needs to cope with their own development, and if it is not useful for development, they will choose to degenerate.

The function of eyelashes is to protect the eyes, block some dust, sweat and the like, animals in the sea live in the water, are not afraid of water, and have a special eye diaphragm protection, so there is no need for eyelashes.

Because the sea is full of water, there are no solid particles in the air, and there is no need for eyelash protection, so some animals in the sea do not have eyelashes.

Because eyelashes are used to block sweat, rain and some small flying insects, and fish live in the water, they don't need eyelashes to block anything, and eyelashes are to grow on the **, some fish do not have ** suitable for eyelash growth, so there is none.

The function of eyelashes is to block sweat for the eyes, prevent sweat from flowing into the eyes, and cause eye inflammation and other diseases, which is the protective mechanism of the eyes.

Fish live in water, their eyes are not afraid of water, they don't have eyelids, and they don't have to worry about water entering their eyes. There are also amphibians that have a transparent diaphragm on their eyes that protects their eyes underwater, so they don't need eyelashes.

In addition, it is not as simple as a missing eyelash grip, most of them do not even have a single hair! That's what they say!

There are thousands of creatures in the world, although we live inland and not at the seaside, but we still know a little about the sea, because of the function of mobile phones and televisions, when we see the creatures living in the sea, we will feel the difference, they are too different from us, no limbs, no developed brain, and even no eyelashes, so why only the animals in the sea have no eyelashes? Because in the ocean, eyelashes can block the view, affecting hunting and movement.

Eyelashes are the characteristics of a few creatures on land, we humans, dogs, pigs have eyelashes, but birds don't, this has a lot to do with our lifestyle, for example, human eyelashes can block foreign objects from entering the eyes for us, no eyelashes air will be absolutely dazzling, but for marine creatures eyelashes are cumbersome, if the eyelashes are too long, they will fall back when swimming at high speed, which seriously leads to poor vision, so it is useless when fleeing or hunting.

The fish we are familiar with do not have such a thing as hair, because for them there is no such thing as using hair to keep warm, when it is cold, it can be kept warm in the grass pile or in the soil, and it can stop eating this way to hibernate, of course they do not have eyelashes, because they swim in the water They have a special membrane on the surface of their eyes, which can protect the eyes well and will not be affected by branches or rapids.

The role of hair is still very large, eyelashes are just a kind of hair, on our body, more will grow hair, for example, the hair on the head can protect our head, and in the previous period when the hair was more vigorous can be used as a hidden prop, and our leg hair can be used as wool pants, in winter we will feel very warm, but for other animals may be a disaster, some animals will automatically fall off if they have too much hair, otherwise the predators will not be able to run away.

Because there is no dust in the sea, there is no need for eyelashes to ward off dust; While there is dust on the ground, eyelashes can play a role in protecting the eyes.

Eyelashes have no effect on the creatures in the sea, the role of eyelashes is to block objects from entering the eyes, and the water in the sea is very fluid, and the eyelashes do not work.

Because the eyelashes have no effect on them, they degenerate over a long period of time in order to adapt to life in the sea.

Because fish in the sea do not have eyelids, they naturally do not have eyelashes that grow on them, and the eyes of animals in the sea have evolved to not need eyelashes.

In the process of biological evolution, unnecessary organs will be eliminated, and animals living in the ocean do not need eyelashes to shield themselves from wind and sand, so they naturally do not need organs such as eyelashes. There are even some fish that only close their eyes once from birth to death, and eyelashes are superfluous for them.

In the ocean, there is no "glamorous eye" of wind and sand as often as on land, and having eyelashes to shield the wind and sand becomes useless on the bottom of the sea. However, because of the presence of eyelashes, these fish will have resistance due to debris on the surface of their bodies when swimming, and they need to spend more effort to swim faster and farther than the original slippery ......

If you have hair, it will also fall out due to the erosion of the sea in the sea, and it will become "bald", not to mention the sparse eyelashes, which are very fragile in themselves.

When eyelashes are immersed in seawater for a long time, these eyelashes will fall out. And the new ones will fall off again after a while. In the long run, eyelashes will no longer grow, and it will become the norm for all creatures in the sea.

However, not all animals that can live in the sea do not have long eyelashes. There are still animals that are able to live both in the sea and on land. They have "glamorous" long eyelashes.

When the sea is in the water, the eyelashes will stick to the muscles on the face and will not flutter at will. When you go to the shore, you can also shield yourself from the wind and sand through your eyelashes. However, their eyelashes are actually thinning as well.

In fact, living things will change with the change of the living environment, so that they can better adapt to the living environment. Just as giraffes need long necks to survive in order to be able to eat high leaves, giraffes that used to have short necks cannot compete for long necks and cannot eat enough leaves, so they can only be eliminated by nature. Therefore, the physiological characteristics of many organisms are actually closely related to their living environment, and only by adapting to ......the environment can they survive and live better

Because over time, animals in the sea are rarely exposed to sunlight during their survival, and only occasionally float to the surface of the sea to breathe, and their eyes rarely play a role, and slowly begin to degenerate, and their vision weakens or disappears, so they do not have eyelashes or their eyelashes have already degenerated.

Because this is evolved, some animals in the sea are affected by the environment, and the eyelashes are of no use, so they do not evolve eyelashes.

Because in the sea, you will be under the pressure generated by the seawater, and if you have eyelashes, the eyelashes will not be able to open due to the pressure.

Although not all animals have eyelashes, some animals also have eyelashes, many animals have eyelashes like humans, such as horses, giraffes, ground hornbills, ostriches, kangaroos, these are animals with long eyelashes, but fish, insects and other animals rarely have eyelashes.

The reason why humans have eyelashes is because eyelashes can play a good role in protecting the eyes and preventing foreign bodies from entering the eyes. And the corneas of animals are very thick, and they are not afraid of foreign objects at all, so they do not have eyelashes.

Not only humans have eyelashes, but some animals also have eyelashes, such as ostriches, zebras, kangaroos, alpacas, giraffes, and animals also have eyelashes, and humans are not the only ones who have eyelashes.

Because human eyelashes are used to protect the eyes, and at the same time, they also have the effect of cleaning the eyeballs. But many animals, like crocodiles, have thick corneas, so they don't need eyelashes.

Because it is not a species in the first place, it leads to the fact that humans have eyelashes, but animals do not.

We all know that there are many animals living in the ocean, including fish, shrimp, and many, many other aquatic animals, but if we look at them carefully, we will find that these animals basically have eyes but no eyelashes, why is that? In fact, some of these animals actually had eyelashes when they had not yet evolved into sea creatures, but when they were in the sea, they had to rub against the sea water all the time during the process of swimming, and gradually their eyelashes degenerated.

Many animals that live in the sea basically have their eyes on their heads, and this position is the most frictional with the sea water in the process of swimming, and even if the animals that used to have eyelashes in rest for a long time later degenerate their eyelashes in this special living environment. For example, the fish we often see in shopping malls or restaurants are good examples, their eyes are long on their heads, and their heads are pointed, and when they swim forward, there is almost no part of their body that can protect their eyes, and the sea water washes directly over their eyes, and over time the eyelashes are gone.

In fact, they are all affected by a certain living environment, for example, if we humans do not often use our hands to do things, our palm skin may also be relatively thin, and hair will grow from the palm; If we don't have to walk on our feet, the soles of our feet won't have such thick skin, and they may be soft to the touch, and the creatures in the ocean have evolved to adapt to a certain living environment.

In fact, imagine if the animals in the ocean have eyelashes, it is very inconvenient for their lives, just like when the heavy rain on a rainy day wets our eyes, the eyelashes will be glued together, or run into our eyes so that we can't see clearly; And it's only an occasional thing for us to get caught in the rain, and the animals in the ocean are dealing with water almost all the time, so it will be even more inconvenient if you have eyelashes.

Marine animals do not have eyelashes because they obscure their view and prevent them from hunting and hiding from predators. Eyelashes are primarily characteristic of terrestrial creatures, which are needed to protect against dust and rain in the air.

The reason why creatures have eyelashes is because they are afraid of getting into their eyes. Therefore, eyelashes also play a good role in protection. However, sea creatures do not have to worry about getting debris in their eyes, so they do not have eyelashes.

Because the function of eyelashes is to block dust, and dust will not fall in the ocean, eyelashes lose their effect, so the creatures in the sea basically have no eyelashes.