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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The Fantasy of a Middle Ages White clad Girl
In a futuristic world full of technology, there is an artificial intelligence system called "White Girl", which is widely used in various fields to provide convenience and services for people.The girl in white has a high degree of intelligence and autonomy, can make the right decisions in various situations, and can quickly adapt to new tasks and environments...
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Huawei WATCH4 Series Release: First High Blood Glucose Risk Assessment, Hitting Hongmeng OS3.1
Huawei also releasedThe WATCH4 series smartwatch features two options: WATCH4 and WATCH4Pro. Compared to the previous generation, it mainly upgrades in appearance design and screen, and of course, there are also surprises inside...
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Milk Tea Sister Zhang Zetian: Fake White, Sweet, and True Female Leader, Sitting Level with Husband Liu Qiang Dongping
If you like this article, please click on theFollow Thank you for your support and encouragement. I hope it can bring you a comfortable reading experience...
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The impermeability of waterproof materials gradually decreases. What is the impact of graphite oxide on the impermeability of waterproof materials
Wen|Long YuetanEdit|Long Yuetan Introduction Cement-based permeable crystalline waterproofing material is a new type of waterproofing material with excellent anti-seepage performance. However, as the use time of the waterproofing material increases, its anti-seepage performance gradually decreases...
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How did Zuckerberg's Silicon Valley goddess, who had lost both her job and husband, hit the bottom and rebound?
Is there really no way out at the age of 30? If you are lamenting the unfairness of fate, you can listen to her story. No one's success is casual...
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