"我用自然选择这个术语来称呼每一个有用的轻微变异被保留下来的这个原则。"
— Charles Darwin
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Simplified Meaning:
When there are small changes in living things that help them survive better, these changes are kept and passed down to the next generations. Over time, these helpful traits become more common in the species. For example, think about how giraffes have long necks. A long time ago, some giraffes might have had slightly longer necks than others. These giraffes could reach more food on tall trees, so they were healthier and had more babies. The babies inherited the long necks and also thrived. This process, where useful traits are kept and passed down, is called Natural Selection. People can use this idea to understand how plants, animals, and even human skills improve over time through small, beneficial changes.
Related tags
Adaptation Biodiversity Biology Charles darwin Evolution Genetics Natural selection Survival of the fittest VariationFEATURED QUOTES
