The unsolved mystery of animals

1. The unsolved mystery of animals: Is suicide a noble choice for animals?

On the surface, suicide is a mockery of the laws of nature, and all living things have the instinct to fight for survival until the last drop of blood is shed.

The reasons for human suicide are complicated. Obviously, non-human animals don't leave anything as clear as a note for you to study, and they are unlikely to do anything as clear as jumping off a cliff and killing themselves.

However, there are countless examples to prove that animals can sacrifice themselves for their own kind. White mosquitoes will burst open their internal organs and spit out sticky and filthy things to the enemy to counter the threat of the enemy to the nest; Rats would rather starve to death than risk infecting other companions in the same hole. What is even more striking is that many non-human primates suffer from severe depression when they are inconvenient to move and nervous. If you enter the depression period, monkeys will do many life-threatening behaviors-not eating until they die of malnutrition, or hanging from dangerous branches and swinging back and forth. Normal monkeys will never do this. The monkey's depression is very similar to that of human beings, and giving it antidepressants can actually eliminate its emotional disorders.

Obviously, the complex behavior of human suicide cannot be explained by attributing suicide and depression to the law of natural selection. However, things with animals are much simpler than things with people. Many times, people don't know whether death in the wilderness is intentional or accidental.

The weak brother will say good night easily in order to save money.

Some animal behaviorists have established models to predict that in some cases, when newly hatched birds are in a flock of birds, they would rather let other birds peck themselves to death than fight back for genetic inheritance. For example, among crested penguins, females always lay two eggs at a time, one big and the other small. In the polar environment, it only has the ability to raise a bird until it is independent; Usually, lucky birds are birds laid by larger eggs. However, it still lays two eggs at a time as a kind of insurance in case the big one is eaten. If both eggs live to hatch, the smaller one had better be pecked to death by the older compatriots without complaint-this is basically putting himself under the sword of his compatriots. After all, two birds can't live at the same time, so why grab food from their compatriots who are more likely to survive?

This theory is supported by some observation data: when a group of penguins meet, the smaller penguins really seem to die one by one until they all die, without hurting other people's feathers at all. However, commentators on this scene disagree with this view, saying that smaller competitors will not say good night so easily. They pointed out that if an ordinary person meets mike tyson in a lifeboat, and the food around him is very limited, it would be foolish for him to challenge Tai Sen without fighting. On the other hand, this little man is likely to keep a low profile, wait for an opportunity to push him into the sea, or simply pray that Tai Sen will be struck by lightning.

Moles that exhaust their butterflies and suffocate themselves ... animals that want their own kind to benefit from their own death.

Generally speaking, from a genetic point of view, only when an animal dies will it gain a lot from this behavior and lose a little, then scientists call this death suicide.

Some people put butterflies with colorful and mottled wings in this category, because it will blend in with the surrounding environment and escape the bad luck of being eaten. After the breeding period, an adult butterfly will pose a threat to the surviving offspring, because if the old insect is found by birds, the predator will distinguish the butterfly it wants to catch from the nature according to the pattern of the butterfly, which will also put the little butterfly in danger. In this way, what actually happens is that after the breeding period, the butterfly will throw itself on the ground and flap its wings violently until it dies of exhaustion. They destroyed their tracks and all their secrets before they were caught.

There are many other examples of self-sacrifice. In some galls-small insects that cause pests-mothers will give their bodies as food to their offspring, and these offspring will be happy to eat these foods. In some moles, the relationship between underground, hairless and blind rodents is like bees in a hive. An animal infected with parasites knows what it should do: rush to the place where everyone defecates in the cave and stay there until it dies. Once its determination is made, it is difficult to change it, and it is impossible to force it to feed. Even under laboratory conditions, a sick mole wouldn't risk making everyone sick.

They may think that it is best to eliminate the source of the disease before it pollutes what they love most.

Because of the simplicity of animal behavior, it has been misunderstood in the past. For example, when it comes to species suicide, lemmings are always mentioned as a prominent example. For a long time, people have always thought that these rodents collectively committed suicide in the sea, just like hearing the collective alarm, telling them that today is a good day to die. However, the latest research found that the story of the lemmings who committed suicide was completely fabricated.

These short brown rodents did die collectively, but that was the result of misjudgment. Lemmings are locusts in mammals. They will eat up all the habitats, and then start a large-scale migration to find new feeding places. They climbed the boulder pile, bypassed the tree and crossed anything in front of them. If they encounter water, they will try to swim across it, which is often seen by streams and ponds on weekdays. If they happen to hit a lake or ocean, it will be too late to find that they can't swim any more.

The mystery of lemmings' suicide

Lemming is a very common and lovely little animal. It lives in the Arctic all the year round. It is oval, with short limbs, short tail, small ears and timid eyes. But when it is cornered, it will also fly into a rage and fight back. Eskimos call them animals from the sky, while Scandinavian farmers directly call them "voles". This is because, in a good year, their number will increase greatly, just like the sudden arrival of the heavenly soldiers. Once it reaches a certain density, for example, after there are hundreds of lemmings in 1 hectare, almost all lemmings will suddenly become restless, stop eating, stop being timid, and try their best to attract the attention of natural enemies to swallow and consume more of them. Sometimes even take the initiative to attack, but also change the coat color from gray-black to orange with obvious goals. At the same time, they also showed a strong sense of migration. They gathered in large groups and fled to the sea for no reason. Some scientists have found that the rapid increase of population has caused changes in the chemical process and endocrine system of lemmings, which has led to a large number of collective suicides. However, whether lemmings committed suicide collectively or accidentally sank into the sea during migration is still a mystery in biology. But only lemmings in northern Europe and Norway commit suicide by jumping into the sea periodically, and lemmings in northwest America, southern Russian grasslands and Mongolia have never found such a situation.

Whales on the beach

Perhaps the most worrying mystery of animal suicide is that whales and dolphins "washed up on the beach" or "ran aground". 1On September 25th, 999, the Canadian Coast Guard found a stranded killer whale near Bendink Island in the eastern part of the Juan de Fuca Strait. Experts and students from Pearson University were allowed to drag him ashore to investigate his death. In order to identify it, the students took photos of the shape and markings of its dorsal fin. After comparison by experts, it is confirmed that the killer whale belonging to the L population of the nearby vancouver island domain with the number of 5 1 was born in 1973. Shortly before the accident, it was found that its descendants had been cruising around. Finally, the samples were thoroughly decomposed and displayed, and the samples were sent to the school to determine the real cause of death. Polder, a German oceanographer, once found a high concentration of tributyltin venom in the brains of dolphins, which came from the paint on the ship. According to the survey, there are tens of millions of liters of tributyltin toxin in the ocean at present, and it is still increasing. Whales have the habit of chasing ships and playing in the water. After a long time, they are easily poisoned by tributyltin, which damages the brain nerve and the ability to distinguish directions, thus staged a suicide tragedy.

Ten unsolved mysteries in the world:

First, the mystery of the mysterious treasure

The mystery of czar's 500 tons of gold

The mystery of Shi Dakai's hidden treasure

Where does Cixi's coffin full of treasures flow?

The mystery of the hidden treasure of the "Red Virgin Army"

Rommel's Mystery of Huge Gold

Australia's Hidden Mystery of Golden Island

Tempelriddernes Skat

Mysterious treasure map handed down by French pirates

The mystery of gold and silver

Second, the unsolved mystery of mankind

Where did humans come from?

Where does human wisdom come from?

Where does HIV come from?

Can the head be transplanted?

The mystery of human potential

The mystery of human nature

……

Third, the unsolved mystery of archaeology

Mystery of Qin Shihuang's tomb

Why did China Chinese characters appear in the United States?

Many secrets in the pyramid

The lost ancient city of Loulan

The ancient Roman city that has been missing for thousands of years

The Secret of Babel

The mysterious statue of Omke

Kaifeng underground city is stacked.

……

Fourth, the mystery of history and culture.

Noah's ark was submerged under thousands of years of snow.

The mystery of the mysterious disappearance of Mayan civilization

What secrets are hidden in the Bible?

Stonehenge is more mysterious than the pyramids.

Who was the first emperor of Japan?

Is Jesus a man or a god?

The mystery of Napoleon's murder

Hitler's gender mystery

The mystery of the verb (verb's abbreviation) whispering.

Aliens with unknown good and evil.

Alien visit

Where do aliens come from?

Why don't aliens want to communicate directly with people on earth?

Are the Mayans whispering?

Alien "mating experiment"

UFO is an unmanned reconnaissance plane of the US Department of Defense?

The "Mountain of Death Incident" 4,000 years ago

Does the United States keep alien remains? !

……

Six, the unsolved mystery of the universe

Mystery of the origin of the moon

The moon doesn't go around the earth!

The most mysterious mystery in the universe-black hole

Doubts found in American moon landing photos

The mystery of star formation

Gold in the universe

Mysterious celestial bodies revolve around the sun.

The mystery of the pyramids on Mars

……

Seven, the unsolved mystery of animals

There are no living dinosaurs on the earth!

Were the ancestors of human beings dinosaurs?

The Mystery of China Nine-headed Birds

The mysterious ant kingdom

The mystery of the battle between the tiger and the lion

Mystery of marine python

Mysterious siren

The mystery of whale suicide

……

Eight, the unsolved mystery of plants

The mystery of tree rings

The mysterious telepathy of plants

Plants can receive signals from space.

Plants also have joy, anger, sadness and joy.

The mystery of eating trees in South Africa

The secret of plants eating animals

The mystery of plant defense weapons

……

Nine, the unsolved mystery of the earth

"Missing" Daxizhou

The "dead zone" on the 30-degree north latitude line

The mystery of lop Nur

Mystery of undersea pyramid

An ancient continent that disappeared in the Pacific Ocean.

Did the ancients still live under the sea?

The Japanese say that the sea of death will turn pale with fear.

The base of early aliens under the water of the Great Demon?

……

X. the unsolved mystery of nature

Seven mysteries of Tangshan earthquake

The mystery of the earth's halo

Terrible highway of death

A Centennial Mystery-The Tunguska Big Bang

Heard the fierce fighting nine years ago.

The mystery of black lightning