There are three key conclusions to be drawn from the theory of evolution: Natural selection is differential success in reproduction. Natural selection occurs through an interaction between the environment and the variability inherent among the individual organisms making up a population. The product of natural selection in the adaptation of populations of organisms to their environments. Evolution is not progressive - Evolution is not designed to produce the best quality products, it only seeks to design adaptations 'that will do the job' most efficiently and economically.
Therefore, evolution used the 'mammal template' throughout the development of all mammal species - eg. Evolution is not an argument for the status quo - Evolution does not dictate why things are the way they are. It must be remembered that some of an animals features may be trade-offs or by-products of the evolution of an unrelated adaptation. Evolution provides constraints - What has gone before sets physical limits on what we can do now.
This is seen in the fact that we learn some things much more readily than others. In this sense evolution has also constrained what things we are able to perceive and attend to. Independently they came to the same conclusion: over generations, natural selection of inherited traits could give rise to new species. Use the resources below to teach the theory of evolution in your classroom. Join our community of educators and receive the latest information on National Geographic's resources for you and your students.
Skip to content. Image Voyage of the H. Beagle Darwin traveled the world for five years collecting samples then returned to England to analyze his samples. Image from National Geographic Books. Twitter Facebook Pinterest Google Classroom. Overview Vocabulary. Media Credits The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another page that contains the media credit.
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Interactives Any interactives on this page can only be played while you are visiting our website. Related Resources. View Collection. Charles Darwin. View Article. He packed all of his specimens into crates and sent them back to England aboard other vessels. Studies of his samples and notes from the trip led to groundbreaking scientific discoveries. This work convinced him of the insight that he is most famous for— natural selection.
The theory of natural selection says that individuals of a species are more likely to survive in their environment and pass on their genes to the next generation when they inherit traits from their parents that are best suited for that specific environment. In this way, such traits become more widespread in the species and can lead eventually to the development of a new species. In , Darwin published his thoughts about evolution and natural selection in On the Origin of Species. It was as popular as it was controversial.
The book convinced many people that species change over time—a lot of time—suggesting that the planet was much older than what was commonly believed at the time: six thousand years. Charles Darwin died in at the age of seventy-three. He is buried in Westminster Abbey in London, England. The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another page that contains the media credit. The Rights Holder for media is the person or group credited.
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