Natural Selection Definition
Natural selection is the process of organisms changing over time. Organisms with traits better suited to their environment tend to survive and reproduce.
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Natural Selection
Fun Facts
- Natural selection could affect humans when bacteria that can make us sick changes.
- Natural selection can lead to evolution, which is why there are no longer giraffes with short necks.
- The process of natural selection is also referred to as survival of the fittest.
Why Do We Need To Know About Natural Selection
Learning about natural selection helps us understand how and why certain animals and plants change over time, gaining traits that help them survive better. This idea is used in real life, like in farming where we’ve made crops like corn much different and better than their wild versions through selective breeding. This means choosing the best plants or animals to create the next generation. The same goes for raising animals like sheep to get better wool.
This knowledge is also important in medicine, especially to understand why some bacteria become resistant to antibiotics. Scientists studying old bones and fossils use what they know about natural selection to figure out how life on Earth has changed through millions of years. Knowing all this helps us fight diseases better and protect different kinds of plants and animals.
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