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Tại sao linh cẩu 'cười'?

Cập nhật: 01 thg 4, 2019 lúc tháng 3 31, 2019

Perhaps we all know through the image of 3 cunning villain hyenas giggling in the Lion King movie, if not, watch this animated film then come back to answer questions. this.

Not all hyenas laugh
Of the four hyenas, it is recognized that the spotted hyena is a crunchy laughter, even shivering. In fact, zoologists have found that they "just laughed" when there was a certain event, most often in conflicts over food or territory of hunting. In a complex complex, their mischievous hunting tactics and nocturnal nature make us think that hyenas are night hunters on the steppe to search for their next meal with a laugh. barbaric when they tore off the prey's body mercilessly. However, it was discovered that hyenas do not possess that gruesome sense of humor, they are not fools who laugh madly on their savage jokes. 

They don't really laugh
Here I want to talk about people's feelings. First of all, not all hyenas make such a cry. For smelly hyenas, they have fairly strong jaws compared to their body size in the mammalian kingdom. It is because of our brains, our perception of that laughter is seen as an unconscious act of attaching human emotions to a non-human act, an animal behavior, as Simple way to judge their actions. This is called the behavioralization of animals, often occurring even with inanimate uses for humans.

We tend to classify certain behaviors in animals and assign emotions to it, which also includes identifying "the face of non-emotional objects." It is the result of an interesting socialization process that appears only by human imagination. A simple example, do you wonder if your cat feels guilty after tearing the pillow and dragging cotton balls around the house? Of course we feel confused when we answer.

For hyenas, the crunching laughter they emit is just a cry of theirs, like all other animals have their distinctive cry. And of course it has a completely different reason, not from the humor that spotted hyenas have as we often think.

Why do they make that sound?
Nicolas Mathevon, a biologist at Jean Monnet University, along with his colleagues, followed 17 hyenas at Berkeley. The researchers recorded their sound and performed audio analysis to understand the different ways of communicating hyena. They measure the length, frequency (pitch) and amplitude (volume) of each giggle. The results are fascinating.

Behind those laughter, the fact is that the sound came out to express disappointment that hyenas only emit when there is conflict in the flock, like fighting for food, ... As a cry Help from other cult hyenas. The research team also gives a hypothesis about the social hierarchy of this species. That children in the lower stratum often emit sounds at higher frequencies than those of the first. In the animal world there are two rules, researchers say it is time and energy. Having food to survive is a strange rule, an animal will have to pay to trade between these two things. Hyenas are often disappointed when the night comes, their time is limited, the vision is narrow and the belly is still hungry. Therefore, hunting for a dinner will attract many contenders, Competition for survival in hyena society is often blood feasts. They are ready to tear apart to get good prey. So when the struggles happen, it is when scientists hear their hysterical laughter, they think that it is close to despair because of a confused mind, to make a living to live just right. scramble or defend dinner in front of other species and predators.

On the other hand, because of the survival of the species, the spotted hyena will have "laughter" with different frequencies and amplitudes, as a way of communication and decentralization in society. Scientists find that their laughter is different for their age and position. For a hyena, laughter is what helps other hyenas to identify it. Nicholas discovered most of the sounds when hyenas gathered around a newly hunted prey, first to signal that a prey had been hunted or summoned if there was a dispute. Hyenas also often divide sects in groups of 3-6 children. Nicholas also said that the laughter came out to communicate with other children, showing whether they were involved in the competition or just turned their backs into hunger.

Although there are many emotional assumptions about animals. However, what we see is the spotted hyenas, the giggles around the prey they hunt. The laughter of the spotted hyena is still hidden in many different emotions according to scientists' assumptions.