What If You Spend Your Life Under Water?

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530 million years ago the very first creatures emerged from the oceans to finally lay claim to the land, thanks to which we now have the pleasure of walking on solid ground. But, like any joys in life, it may come to an end sooner or later, as by the year 2100, ocean levels will have risen by a little over two feet, or 66 cm. And as more time passes, even more land will sink into the depths of the world’s seas and oceans. Many people will simply have to at least partially return to an aquatic way of life. So then, the question is: Will this cause us evolve back into aquatic or semi-aquatic sea creatures? Unfortunately for us, most of the inhabitants of the oceans have seriously “jacked up their game” and improved their aquatic skills while we were lazily puttering around on the land. The amphipods are a good example. Living at the bottom of our oceans, , these crustaceans can withstand - on each and every single square centimeter of their bodies - the crushing deep sea pressure of 1125 kilograms! Man, of course, is unlikely to also want to live in the deepest parts of our world ocean. But if we pick out randomly just about any other point on the ocean floor, we find an average ocean depth of 4,023 meters below sea level, and pressures at that depth are still pretty harsh. A casual stroll through such a terrain would find us with a devastating force pressing down upon us equal to roughly 14 loaded cement trucks. It might seem at first glance that such pressures would quickly turn one into a flattened pancake, but as we ourselves are made mostly of water, we would die for another reason: the gas in our blood and lungs would begin to condense and compress, causing unbearable suffering... before, obviously, causing our death. But if, somehow, you were to miraculously survive such an indignity, upon swimming higher to escape the crushing pressures below, you would find yourself finished off for sure by decompression sickness, also known as The Bends! The nitrogen that we normally inhale as part of the air we breathe will literally boil when the pressure lessens. As a result, your blood will become poisoned and deprived of oxygen, and - again - you will expire, accompanied by truly excruciating pain. However, these are not our greatest problems. Perhaps the biggest obstacle to the development of our underwater world will be the simple fact that we cannot actually breathe under water! For one thing, the surface area of our human lungs is just too darn small. And secondly, they do not allow for the extraction of oxygen from any liquid that exists... except for one: something called perfluorocarbon. This substance - which carries oxygen and carbon dioxide - is 4 times richer in these gasses than our own human blood. If you fill the human lungs with such a solution, this will not only solve the problem of breathing liquids, but also save us from even the strongest and most crushing deep-sea pressure. True, this technology is not presently used for diving, but to provide astronauts with oxygen, and also to help rehabilitate premature babies. So, in actuality, to create a diving apparatus that uses perfluorocarbon, a great deal of scientific and technological effort will need to be expended. However, in the future we can avoid such complications altogether. It will be enough to simply implant a special kind of crystal into a person’s lips, which will itself extract oxygen directly from sea or fresh water. This miracle invention was created in Denmark. Due to the presence of cobalt, this almost magical crystal is able to extract oxygen from almost any liquid, which will be quite useful in the case of the coming future global flood situation. Along with this device there is another truly mind-boggling and amazing invention: artificial gills These are printed on a 3D printer by a Japanese inventor and designer by the name of Jun Kamei. This amazing novelty is - in its functionality - similar to the aforementioned crystal, only with an improved and fairly stylish design. Nevertheless, even such bold devices for underwater breathing will not be able to make an Aquaman or Aquawoman out of everyone. And without such technology, we will be completely powerless and at the mercy of the grand, Earth- spanning world ocean. Ultimately, only those who can evolve will survive... But remarkably, for some of us, that evolution has already begun... Let’s take a look at the Bajaw people, or, as they are also called, sea gypsies. These people have been living semi-aquatic lives for centuries, and as a result their bodies have undergone certain genetically inherited changes. In the first place, the Bajaw have a spleen 2 times larger than that of ordinary human beings. During a dive, a Bajaw spleen shrinks and releases additional hemoglobin, resulting in their blood being saturated with oxygen. As a result of this, the Bajaw people are able to spend as much as an astounding 13 minutes under water without any equipment! Using this long time underwater, the Bajaw have become extraordinarily adept undersea hunters. They can catch valuable fish that others simply can’t. Additionally, the Bajaw people can see perfectly well even in muddy waters: their underwater vision being much better developed than that of Europeans. These amazing people are also adapted perfectly to cold water temperatures. Marine mammals keep quite warm due to their extra layers of fat. But the Bajaw are incredibly slim, and in excellent physical shape. Their bodies do not shiver due to hypothermia, and their skin never gets too warm. This is because their bodies channel resources into warming and oxygenating their internal organs. They also have no need for over- developed musculature, as big muscles are an extra expense requiring large amounts of precious oxygen. And still, when there is a deficit of O2, Bajaw bodies are much better adapted to oxygen starvation. However, if nature has genetically awarded some amazing abilities to these Bajaw sea gypsies, others they acquire themselves. Some Bajaw intentionally rupture their eardrums when they are young in order to improve their diving skills. As a result, many of the adults of these amazing aquatic people are hard of hearing. This is one of the costs of becoming a real human amphibian. It should be noted that the Bajaw are not the only people whose bodies have adapted to life in the water. There are also the Moken, the Orang laut, and the Urak Lawoi - and no, I did not make up those names - among many other tribes of real live existing on Earth aquamen and aquawomen...or should I say aquapeople? Anyway, this gives us hope that the evolution of the rest of humanity could also move in the direction of our seas and oceans. Already, individual human divers can hold their breath longer than a sea otter, dive deeper than a walrus, and swim faster than a manatee. There is actually a theory regarding human evolution that posits that humans are descended from so-called water monkeys. This hypothesis - called the Aquatic Ape Theory - was advanced by the marine biologist Alistair Hardy. The scientist noticed that many great apes can walk upright, but they do it only when they are walking through water. Hardy believes that our human straight posture and upright walking is the result of a - for a period of time - semi-aquatic lifestyle that some of our ancestors adopted. Our general lack of thick hair on our faces and bodies, and the extra fat under our skin additionally could be the result of our species having adapted for living in water sometime in prehistory. Most scientists reject Hardy’s theory, considering it to be pseudoscientific. But I am intrigued at the very least. What do you think? Be sure to leave your opinion in the comments below! However, if the eminent English biologist is wrong and early human ancestors didn’t return to the water for some time, anthropologist Matthew Skinner from the University of Kent, believes we will do so in the future. M In his opinion, global warming will turn people into a something resembling seals! He suggests that the volume of our lungs will decrease, our limbs will lengthen, and skin membranes will appear between our fingers and toes, giving us webbed hands and feet. This will help us move better along the streets, avenues, and boulevards of our future flooded cities. He speculates that our human eye will evolve into something that looks like cats eyes, so that we can see better in the dark and muddy waters. And to preserve heat, he believes our bodies will become covered with additional layers of fat. In general, in the not too distant future, on our rocky shores there will be an opportunity to see how packs of fur seals fight with seal-men for fish and territory. That is, of course, if you believe Matthew Skinner... But even such a dramatic change in appearance would not allow a person to lead a full-time underwater life. So that we could survive 100% in the depths of the sea, the changes required would need to be even more dramatic and all-encompassing. For breathing, it is desirable to have not artificial gills, but real ones. Or at least to increase our lungs ability to capture more oxygen from the air, to store for later when we are underwater, as dolphins do. When inhaling, marine mammals absorb 80% of the oxygen in a breath, humans - only 17%. The respiratory system of humans must also necessarily be separated from our mouths, so that we have the opportunity to eat underwater without drowning, which, by the way, tends to dehydrate a person. Since our aqua-diets will be lacking in vitamin C and D, our bodies will need to be restructured so as to dispense with them. It will also be necessary to alter the structure of the ear, in order to avoid the bursting of our eardrums, and the nose - to minimize pressure on the skull. As we will be substantially lighter, we will also need some kind of additional protective frame. It also wouldn’t hurt if we could acquire the ability to arbitrarily control our own metabolisms, and our heartrates, the better to move our bodies into various different “working” modes for different activities. In short, getting down to the brass tacks of the matter, we need something like a thousand years of evolution, which, however much we might desire such a stretch of adaptation time, it will not keep up with the rapid pace of global warming. Therefore, it probably would be better to keep the land we have now, if we humans can possibly manage such a thing. If you liked the video, put your thumb up, and subscribe. And if you haven’t already done it - press the bell to get notified of future episodes! Believe me: you don’t wanna miss a thing! Oh yeah, and don’t forget to tell all your friends about your pal Ridddle!
Channel: Ridddle
Views: 1,251,818
Rating: 4.7422395 out of 5
Keywords: Ridddle, riddle, what if, what would happened, What Happens If, sci, science, smart, experiment, Live Under Water, aquaman, sea creatures, deep ocean, Spend, Life, Under Water, If You Spend Your Life Under Water
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Length: 13min 4sec (784 seconds)
Published: Wed Mar 06 2019
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