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Anonymous users2024-02-07Why are these creatures not inbreeding after so long of ants, crocodiles, and so on?
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Anonymous users2024-02-06Summary. Dear, the history of human evolution refers to the evolutionary history of human beings. Humans and apes are related in some way and share a common ancestor.
About 65 million years ago, a large meteorite with a width of about 16 kilometers hit the Yucatan Peninsula in present-day Mexico, causing a huge disaster, when two-thirds of the animal species on the earth, including dinosaurs, died out and extinct (the reason for the extinction of dinosaurs is unknown, this statement accounts for only one of them), the ** era of reptiles ended, and primitive mammals escaped the catastrophe after a long time of survival, and then rapidly evolved to form the current human being.
Dear, in fact, human air attendants, like other creatures, may become extinct in the future. This is because the earth's environment is not static, from ancient times to the present, the composition and content of the atmosphere have changed greatly, and furthermore, the temperature of the earth has also experienced several high-loss cycles of ice ages and interglacial periods, once the earth suddenly cools down, human beings will also become extinct because they cannot adapt to the temperature.
Dear, the history of human evolution refers to the evolutionary history of human beings. Humans and apes are related in some way and share a common ancestor. About 65 million years ago, a large meteorite with a width of about 16 kilometers hit the Yucatan Peninsula in present-day Mexico, causing a huge disaster, when two-thirds of the animal species on the earth, including dinosaurs, disappeared and extinct (the reason for the extinction of dinosaurs is undetermined, this statement accounts for only one of them), the ** era of reptiles ended, and the primitive mammals escaped after a long time to survive, and then rapidly evolved to form the current human race.
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Anonymous users2024-02-05Summary. Kiss <>
Although human beings are the overlords of the earth at this time, what human beings can adapt to is only the global environment at this time, and once the earth's environment changes greatly, human beings may become extinct. For example, 65 million years ago, an asteroid hit the Earth, causing the extinction of the dinosaurs, the overlords of the Earth at that time.
In addition, the sun is closely related to the survival of human beings, and the main reason why the earth is suitable for the survival of organisms is because the sun is currently in the main sequence period, that is, the prime of life. In the universe, stars have a life cycle, and the length of life is related to the mass of the star. The greater the mass of the star, the greater the gravitational pull, and the more violent the reaction that causes nuclear fusion inside the star, which in turn leads to a shorter lifetime of the star.
Will humanity become extinct.
Kiss <>
Humans, like other creatures, may become extinct in the future. This is because the earth's environment is not immutable, from ancient times to the present, the composition and content of the atmosphere have changed greatly, and furthermore, the earth's temperature has also experienced several cycles of glacial and interglacial periods, once the earth suddenly cools down, human beings will also become extinct because they cannot adapt to the temperature of megacephaly.
Kiss <>
Although human beings are the overlords of the earth at this time, what human beings can adapt to is only the global environment at this time, and once the earth's environment changes greatly, human beings may become extinct. For example, 65 million years ago, an asteroid hit the Earth, causing the extinction of the dinosaurs, the overlords of the Earth at that time.
In addition, the sun is closely related to the survival of human beings, and the main reason why the earth is suitable for the survival of organisms is because the sun is currently in the main sequence period, that is, the prime of life. In the universe, stars have a life cycle, and the difference in the length of life is related to the mass of the star. The greater the mass of the star, the greater the gravitational pull, and the more violent the reaction that causes nuclear fusion inside the star, which in turn leads to a shorter lifetime of the star.
For there is a sun, and it is the sun.
We humans are also mammals.
But we didn't have a full body of hair like other mammals, we just kept the hair in the important areas, and the rest of the place has already lost the hair. We lose our hair, I don't think it's because we wear clothes, it's just the result of not having hair, it's not the reason. So far, we have not found the real reason for the loss of human hair, and now there are only some hypotheses, among which the heat dissipation theory and the fire theory are more popular. >>>More
It's too sure that people who are not hypocritical are not nothing.
The sun contains a huge amount of energy. Almost all of the earth's energy comes from solar energy. Therefore, the sun is the "mother of energy" of human beings
Because it's really expensive, it's very expensive, and it's really not necessary for us at the momentReasons for a moon walk. In addition, with the development of robotics, many jobs can be done by unmanned probes so that people do not have to risk their lives, and the cost is also much lower than a manned landing on the moon. China has already launched an unmanned lunar exploration mission. >>>More