Why do wild elephants attack humans?

 There are several reasons.

Experts are beginning to notice that elephants exhibit characteristics similar to PTSD. This stems from witnessing, as young elephants, humans killing members of their herd solely to remove their tusks and leave behind carcasses. As a result, they have become more aggressive towards humans out of fear. They associate humans with murder and essentially hate them. Understandably so.

If the matriarch has had a bad experience with people, her behavior will adjust accordingly, becoming more fearful or aggressive depending on her own personality.

Other members of the family follow her lead in moments of crisis, and the young elephant learns how to behave. Aggressive behavior towards humans can be learned. Just as children learn prejudices from their parents, so too can elephants.

next, This is when the male becomes the mast. They are extremely dangerous. They are filled with very high levels of testosterone and itching to fight. They will attack anything that moves. This is easily identifiable as there is often a leak from the temples and wet feet. Mast elephants often excrete a thick, tar-like secretion called temporin from the temporal canal on the side of their head and urinate with their legs.

Because humans have killed many older male elephants for their tusks, younger male elephants are entering the mast earlier than before. This led to a tragic incident in the 1990s in two South African national parks where mob elephants killed more than 100 rhinos without provocation. It only stopped when older, larger male elephants were brought there.

Herds of female elephants with young calves can also be dangerous, especially if you startle them in some way while walking. It's not uncommon for elephants to charge at people on foot or in vehicles, but you can usually tell they're serious from the quietness of the charge and the position of their ears. The most dangerous are when they charge silently with their ears held back.

Elephants in Cameroon are currently facing a crisis. Just this month, horseback poachers killed half of the elephant population in search of ivory. This poaching slaughter is being called one of the worst in decades, with at least 200 elephants killed for their tusks by horseback poachers from Chad and Sudan since January. More than 400 people have died since the hunting season began.

What is the scariest theory known to humans?

 This short story, written in 2009 by American author Andy Weir, is beautiful, terrifying, and thought-provoking. It offers the most unique interpretation of the universe and humanity I have ever read.

egg:

You died on your way home.

It was a car accident. There was nothing particularly noteworthy about it, but it was still fatal. You left behind your wife and two children. It was a painless end. The paramedics did their best, but to no avail. Your body was completely shattered, and believe it, you are in a better state than when you were alive.

And that's when we met.

"What...what happened?" you asked. "Where am I?"

"You are dead," I said coldly. There's no need to hold back.

"The truck was skidding..."

"Yes," I said.

"Am I... am I dead?"

"Yes, but there's no need to be sad. After all, everyone dies someday," I said.

You looked around. Nothingness. Just you and me. "Where am I?" you asked. "Is this the afterlife?"

"It's alright," I said.

"Are you God?" you asked.

"Yes," I replied. "I am God."

"My children... my wife," you said.

"Are they okay?"

"That's what I'd like to see," I said. "You just lost someone, and your biggest concern is your family. That's wonderful."

You looked at me with interest. To you, I probably didn't seem like a god. Just a man, or perhaps a woman. A vaguely authoritative figure, maybe. More like an elementary school teacher than a god.

"Don't worry," I said. "They'll be fine. Your children will remember you as a perfect person. They didn't even have time to feel contempt for you. Your wife will cry in public, but she'll be secretly relieved inside. To be honest, your marriage was falling apart. If that's any consolation, she'll feel incredibly guilty about being relieved."

"Ah," you said. "So, what happens now? Do I go to heaven or hell?"

"Neither," I said. "You will be reincarnated."

"Ah," you said. "So the Hindus were right then."

"Every religion is right in its own way," I said. "It feels good to walk and talk, so please follow me."

We walked on, moving forward through nothingness. "Where are we going?" you asked.

"We're not going anywhere in particular," I said. "It just feels good to walk and talk."

"So, then what is the purpose?" you asked. "When I'm reborn, I'll be just a blank slate, right? I'll become a baby. So, all the experiences and things I've done in this life will have no meaning."

"That's not true!" I said. "You have all the raw knowledge and experience from your past within you. You just don't remember it now."

I stopped walking and grabbed your shoulder. "Your soul is far more wonderful, beautiful, and vast than you can imagine. The human heart can only hold a fraction of what you have. It's like putting your finger in water and seeing if it's cold or warm. You put a part of yourself into a container, and when you take it out, you gain all the experience that the container held."

For the past 48 years as a human being, you have yet to expand and feel a part of your vast consciousness. If we spend a long time here, you will begin to remember everything. But there is no point in doing so in each lifetime."

"So, how many times have I been reincarnated?"

"Many times. Many, many times. I've lived many different lives," I said. "This time, I'll be a peasant girl in China in 540 AD."

"Huh? What? Are you going to send me back in time?"

"Well, technically speaking, yes. Time, as you know, only exists in your universe. It's different where I am."

"Where are you?" you asked.

"Yes," I explained. "I came from somewhere. Somewhere else. And there are other beings like me. You might want to know what it's like there, but honestly, I can't really comprehend it."

"Oh," you said, a little disappointed. "But wait. If I had met myself at a different point in the past, we might have been able to connect."

"Of course. It happens often. And both lives are only aware of their own lifespans, and they don't even realize that it's happening."

"So, is that the whole point?"

"Are you serious?" I said. "Are you seriously asking about the meaning of life? Isn't that a little too formulaic?"

"Well, I think it's a reasonable question," you insisted.

I looked into your eyes. "The meaning of life, the reason I created this entire universe, is so that you may mature."

"Are you talking about humanity? Do you want us to mature?"

"No, it's just you. This entire universe was created for you. With each new life you experience, you grow, mature, and become greater and more intelligent."

"Is it just me? What about other people?"

"No one else exists," I said. "In this universe, it's just you and me."

You stared intently at me. "But all people on Earth..."

"It's all you. It's your own different reincarnations," I said.

You stared at me in silence. "Am I everyone?!"

"You understand now, right?" I said, patting him lightly on the back.

"Am I all the people who have ever existed?"

"And also all human beings that will exist in the future," I added.

You remained silent.

"Am I Abraham Lincoln?"

"And he is also John Wilkes Booth," I replied.

"Am I Hitler?" you asked in surprise.

"And also the millions of people he killed," I said.

"Am I a yes?"

"And also all the people who followed him," I said.

You have become quiet.

"Every time you abused someone, you were also abusing yourself. Every kind act you performed was directed at yourself. The happiness and sorrow that every human being has experienced are things you will experience, or will experience in the future."

You thought about it for a long time.

"Why?" you asked me. "Why do you do all this?"

"Because one day you will become like me. You will become a member of our species. You will become my child."

"Wow," you said, sounding incredulous. "Am I a god?"

"No, you are not God yet. You are still a fetus. You are still growing. You will be born when you have fully grown and have lived through all the lives of all human beings throughout all ages."

"Therefore, this entire universe is just..."

"It's an egg," I replied. "Now it's time to move on to the next life," I said.

And then I sent you off on your journey.

Of which animal does humans have the most misconception?

 The shark .

Contrary to what movies have led us to believe (you all remember

Steven Spielberg 's

"Jaws"

), sharks don't like human flesh. In fact, every year, out of hundreds of millions of people swimming in the oceans, only 65, on average, are attacked by sharks. Of these attacks, a mere dozen are fatal. Humans, on the other hand, kill approximately 100 million sharks every year, 73 million of which are used to cook soup with their fins. Essentially, a human kills a shark 25 million times before the shark kills a human.

Attacks on humans are almost always caused by these animals mistaking surfers for sea lions or seals, which they crave; or by feeling threatened. Furthermore, for these animals, teeth can function as mechanosensory structures: if we humans feel an object with our hands to discover its texture through touch, sharks—which have no arms—bite for the same reason.

If you ever have the opportunity to dive with sharks, it's best to be prepared and keep a few (but good) rules in mind: choose daytime, preferably a time with plenty of sunlight ; avoid nervous and sudden movements; don't wave your hands ; don't touch the sharks; stay in a group ; stay close to a wall ; maintain an upright position ; always maintain visual contact with the sharks; avoid overly brightly colored equipment and make sure nothing is dangling in the water.

What are these mysterious, pristine lands untouched by human hands?

Honokahau Falls (Maui)

A mystery unfolds amidst lush, untouched landscapes.

Venezuela Tepuy

Bhutan, Gankar Puensum

In fact, this area is still the site of conflict between Bhutan and China, but its untouched nature holds an extraordinary beauty.

Tsingy de Bemaraha, Madagascar's "Forest of Stones."

Palau Rock Islands

Because it remains untouched by human hands, it holds a million unsolved mysteries.

Dallol, Ethiopia.

The Pacific Ocean, Palmyra Atoll.

Have you ever heard of the strangest humans on Earth?

 Alexander the Great's granddaughter, who never got sick, and her daughter gave birth at the age of 70!!

The Hunza people are a tribe that lives in a valley known as the "Valley of Immortality." They live long lives, women give birth at the age of 70, and they do not suffer from the epidemics and diseases of this era. Their youth is eternal, as if they live on a planet other than our own. Their women are beautiful, and although they know nothing of civilization, they know how to enjoy and preserve their lives.

The Hunza tribe has a population of approximately 920,000, and its name means "united at a single front line like an arrow." The members of the tribe live a daily life that is the secret to their eternal youth. They eat raw vegetables and fruits, protein from milk, eggs, and cheese, and they have fasting periods, drinking only fresh juice for three months each year, yet they remain healthy, and they only bathe in cold water, even during the coldest time of the year. Their daily life includes walking distances of more than 20 kilometers.

Women enjoy the health to be eligible to give birth at 70 and have fresh skin like a child's, while men are strong and have extraordinary endurance, and the physical exercise necessary to continue life is difficult but there is no room for laziness because their tribe does not have modern technology. This is one of the most dangerous things that threatens heart health, and therefore they live up to 145 years.

These people were discovered by chance in 1984 when a security guard at London Airport stopped a man named "Abdul Maband." His date of birth was 1932 according to his passport, and he looked to be in his 30s. Because the man was a security guard, he told the guard about his hometown.

Andwind, a Hindi-language website, states that this community speaks Bruchski and claims to be descendants of one of Alexander the Great's armies, the army of "Alexanddar," who got lost alone in the narrow mountains of the Himalayas in the 4th century.

Are we alone in the universe?

 Doubt it, there are 100 billion stars in our galaxy, and about every 5 of them have planets orbiting them. And there are many galaxies, numbers become meaningless, and there are many that are thousands of times larger than the Milky Way. But it is big, the distances are enormous, but I think it is unlikely that only a tiny fraction of one of them has intelligent life on it, although I question whether humans are as intelligent as we think, then we had not polluted our thin atmosphere with carbon that warms the climate to a limit that will soon be irreversible, so we wipe out the basis of life on the planet, for what, that a few people should have enormous incomes. Meaningless. So I sincerely hope that we are not alone, because then the universe will be sterile for intelligent beings in a short time.

What" would happen to the earth if humans suddenly disappeared?

 If humans vanished instantly, New York City's subways would flood in just 36 hours. The planet wouldn't fall silent; it would begin a chaotic process of reclaiming its space.

Within days, the fossil-fuel power plants that supply much of the global grid would run out of fuel. Wind turbines and solar panels would operate until their inverters failed or dust coated their surfaces. Nuclear power plants are programmed to shut down automatically, but their spent-fuel cooling pools rely on backup generators. Once those generators ran out of diesel, localized meltdowns could occur, releasing radiation into the surrounding environments.

Many major cities are engaged in a constant, hidden battle against water. Without people to run massive underground pumps, subterranean infrastructure would rapidly drown. Over the next few decades, the freeze-thaw cycle of water would crack pavements and building foundations. Weeds, vines, and eventually trees would take root in the concrete fissures, turning urban centers into dense forests.

Wildlife would experience a drastic shift. Domesticated animals would face immediate hardship, as millions of livestock and pets would lack food and water. Those that escaped would have to compete with wild predators. Highly specialized dog breeds would struggle to survive, but feral cats, pigs, and larger dogs might form packs, eventually interbreeding with wild counterparts. Abandoned cities would become new ecosystems, with skyscrapers serving as artificial cliffs for birds of prey to hunt proliferating rodent populations.

Fast forward a few centuries, and most modern architecture would be unrecognizable. Steel bridges would rust, snap, and collapse into rivers. Wooden structures would rot or burn from unsuppressed lightning strikes. The only enduring monuments would be massive stone structures like the Pyramids of Giza, Mount Rushmore, or the Hoover Dam.

Millions of years later, the human legacy would be reduced to a bizarre geological stratum—a thin layer of fossilized plastics, synthetic chemicals, and concentrated radioactive isotopes buried deep within the crust. Earth would eventually adapt and move on, erasing nearly all surface evidence that humans were ever there.

Which planet in our solar system would be the most difficult for humans to land on safely?

 To find the hardest planetary landing in our solar system, you have to choose between a world with no surface at all, or one where the air is hot enough to melt lead.

Attempting to land on a gas giant like Jupiter is a paradox because the planet lacks a solid surface.

Jupiter, as seen by the Cassini spacecraft in 2000. It lacks a solid surface, making a traditional landing impossible.

Jupiter is composed almost entirely of hydrogen and helium. A crewed spacecraft entering its atmosphere would experience a descent with no end. After passing through turbulent, ammonia-rich clouds and lethal radiation belts, the ship would face exponentially increasing pressures and temperatures. Eventually, the pressure becomes so immense that hydrogen gas compresses into a bizarre state called liquid metallic hydrogen. Any vessel would be crushed, melted, and assimilated into the planet's interior long before reaching the core. Because there is no rocky crust to park a vehicle on, a safe landing is physically impossible.

For a true planetary landing on a solid surface, Venus provides the most hostile environment for human survival.

An illustration of a heavily armored spacecraft descending through the thick, hostile sulfuric acid clouds of Venus.

From orbit, Venus looks like a serene, bright marble, but its atmosphere is a nightmare for aerospace engineering. The atmosphere is composed primarily of carbon dioxide, with thick clouds of sulfuric acid. The atmospheric pressure at the surface is roughly 90 times greater than that of Earth. Standing on the surface of Venus would feel akin to being submerged 900 meters (about 3,000 feet) underwater. Any unreinforced habitat or spacesuit would instantly implode from the weight of the air alone.

In addition to the crushing pressure, Venus experiences a runaway greenhouse effect. The surface temperature averages around 475 degrees Celsius (887 degrees Fahrenheit). This is hot enough to melt lead, zinc, and tin. The extreme heat would instantly cook conventional life-support systems, melt electronics, and rapidly degrade spacecraft seals.

A panoramic view of the surface of Venus captured by the Soviet Venera 13 lander in 1982.

Despite these apocalyptic conditions, Soviet engineers managed to land robotic probes on Venus during the Cold War. Because the atmosphere is so incredibly dense, the later Venera landers did not even need parachutes for the final stages of their descent; they used aerodynamic braking discs to drift down through the thick, fluid-like air.

Once on the ground, the engineering challenge shifted entirely to survival. The Venera 13 robotic lander, which touched down in 1982, holds the record for the longest survival time on the Venusian surface. It lasted for just 127 minutes before the immense heat and pressure breached its protective titanium hull and destroyed its instruments. Designing a crewed lander to keep humans alive long-term on Venus would require specialized high-temperature refrigeration, massive titanium pressure hulls, and materials that push the boundaries of materials science.

While Mars presents difficulties with its thin atmosphere and dust storms, aerospace engineers plan to eventually send humans to visit and inhabit it. On Venus, achieving even a few hours of robotic surface time represents an engineering marvel, making it the single hardest planetary surface in the solar system for humans to reach and survive on.

What will the last humans see and think when the Sun melts the Earth?

Surprisingly, the existence of humans, or their biological or robotic descendants, is projected to extend Earth's lifespan before it is melted by the aging Sun. This disregards any human efforts to extend the habitability of our planet by building shades or altering Earth’s orbit.

Our system is already 4.5 billion years old, and it’s roughly halfway through its life before it becomes a tiny white dwarf. Before it happens, it will expand and become a red giant. It will then absorb Mercury and Venus. The fate of Earth is less certain because, as the Sun expands, it will also lose mass, causing the orbits of the remaining planets to expand. Most likely, Earth will be devoured in a manner similar to that of Venus. There is a small chance that it will become a burnt ember of what it was if it's spared this sorry fate.

In the run-up to this, many natural systems that make our planet habitable will fail one by one. For decades, we thought we might have only 600 to 800 million years before Earth becomes uninhabitable, and many answers on Quora still repeat this, but recently, we have made some progress in knowing with greater certainty the real fate of our planet. There is even a chance that we might have up to 1.5 billion years before it becomes uninhabitable, assuming that humans or our biological or robotic descendants are gone.

It is projected that as hundreds of millions of years pass from the present, the atmosphere will become increasingly devoid of carbon dioxide, which is used by plants. This will happen because our planet will receive more heat from the Sun, accelerating rock weathering and increasing the rate of carbon dioxide absorption. Also, the plate tectonics, which recycles nutrients over geological timescales, might end.

We currently produce copious amounts of this gas as a byproduct of industrialization. If our descendants still exist, it’s safe to assume that we will still be supplying the atmosphere with this gas. Hopefully, it will not be ruined by the speed at which we are releasing these gases now.

If the lowering of carbon dioxide concentration can be avoided, the next dangerous step will be the increase in the energy Earth will receive from the aging Sun. If our descendants don’t step up and either build a shade or move Earth’s orbit away, then the upper limit of Earth’s habitability will be around 2 billion years.

It will then become so hot that the oceans will boil away, and we will not be able to live on Earth as it melts under the Sun's expansion. This will happen on timescales of another two billion years or so. Although Earth’s orbit would tend to expand as the Sun loses mass, tidal effects and the Sun’s enormous growth may still lead to engulfment.

At some point, its rocks will melt, and a global magma ocean will cover the surface, erasing the entire history of our planet, the good and the bad. When Sun’s surface approaches really close, Earth will at some point start to be dragged by the Sun’s atmosphere, and it will spiral into its plasma and literally melt. This will only be possible to witness from a distance and not from the surface.