Animals surpass humans in five perceptual abilities
Today's PerspectiveReporter Liu Xia from our newspaperHumans possess some well-developed and structurally complex senses that have undergone long-term evolution. For example, our vision can see a variety of colors such as red, orange, yellow, green, blue, indigo, and purple; Our hearing can feel the most wonderful music; Our sense of smell helps detect hazards such as fires and food spoilage...
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The experience of Voyager indicates that humans cannot leave the solar system, even at the speed of light
This machine costs three% in the United States. 5One billion US dollars per secondsevenThe speed of one kilometer makes itThe fastest artificial space probe...
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Can humans move freely in space?
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Not as skilled as humans? China spent 140 million US dollars on the moon, while India spent 75 million US dollars on Chandrayaan-3
India's "Chandrayaan-3" will be launched on July 14, and its online attention is very high, even higher than the success of the launch of the world's first liquid oxygen methane rocket "Suzaku 2".If successful, India will become another country to land on the moon after Russia (Soviet Union), the United States, and China...
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What did the United States see on the moon? Why haven't humans landed on the moon for over fifty years
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Can humans engage in sexual activity in space? Listen to the first couple to go to space: it's too difficult
prefaceThe pace of human exploration in space has never stopped. Within the current scope of human exploration, only traces of life have appeared on Earth, and among the many species that have emerged on Earth, only humans have developed wisdom and civilization, exploring the world beyond the visible range of human eyes...
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20000 meters underground, containing "endless energy" that can be used by humans for 2.3 billion years? The United States is developing
From ancient times to the present, in the numerous wars initiated by humans, the issue of "energy grabbing" has always been the core that cannot be separated. However, the rapid development of a country today inevitably depends on having sufficient energy supply...
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Why can yellow and white people have children without reproductive isolation? Do humans really have species?
Today, I want to talk to you about a very interesting topic:Why can the white, black and yellow people on the earth combine with each other and have children without reproductive isolation?This question seems simple,The mysteries of human origin and evolution are actually involvedLet's explore together!Firstly, we need to understand what isReproductive isolationReproductive isolationUnable to produce offspring, or the offspring produced are sterileReproductive isolationThe answer isReproductive isolationThe early lifestyle of mixed livingHighly developed cultural mindThe first reason is the kinship and stable fertility traits of human originOnly about 200000 years agoHumans on EarthEthnic differences mainly stem from variations in representational expression, such as skin color, body shape, etcAnd the reproductive system remains highly similarThe second reason is thatThe early lifestyle of mixed livingReproductive isolationReproductive isolationThe third reason isHighly developed cultural mindDeeply influenced by the environment and social cultureHumans can also bridge these differences through psychological and cultural cognitionCross racial or cultural heterosexual relationships to gain unique attraction and satisfactionSports abilityThese differences are mainly caused by environmental adaptation, gene drift, gene recombination and natural selectionSkin colorSkin colorDHair and eye colorHair and eye colorSports abilitySports abilityThe appearance differences between humans only account for a small portion of the entire genome (approximately 0.01%)Reproductive isolationThis greatly enhances human genetic diversityIt can realize the flow and integration of cultural genes among peopleReproductive isolationWhich country's girls do you like best? Why?...
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Four theories that have been proven by scientists but have always been difficult for humans to accept
On the path of human technological development, there have been many great scientists, many of whom are also well-known to everyone, such as Einstein, Newton, Galileo, and so on. These historical figures have proposed many scientific theories, but it should be noted that science emphasizes logic and argumentation...
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Why do humans cheat? Do you have these six characteristics of the "cheating gene" discovered by science?
Why do humans cheat? Do you have these six characteristics of the "cheating gene" discovered by science?...
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Musk: The probability of humans living in the real world may be less than one in a billion
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Ants are unaware of human existence, just like humans are unaware of the existence of advanced extraterrestrial civilizations?
Firstly, ants are aware of human existence, but they do not know that humans are intelligent species. In the eyes of ants, humans are no different from other species...
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