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Populations tend to generate more offspring than they can sustain, thus people with varied traits will allow them to survive and outnumber other individuals. Traits in a population will vary from one individual to the next.
What is Wallace's evolutionary theory?
- Darwin and Alfred Russel Wallace, one of his scientific contemporaries, proposed that natural selection, or evolution, is the result of this process.
- According to the theory of natural selection, organisms breed more young than they can withstand in their surroundings.
Why is Wallace's perspective scientific?
Wallace came up with the first contemporary definition of what a species is, which would later be known as the Biological Species Concept. He also thought that speciation normally takes place in allopatry or parapatry, when divergent populations are geographically separated or adjacent.
Which scientific idea did Darwin and Wallace discover?
The mechanism of natural selection for evolutionary change was independently discovered by Charles Darwin and Alfred Russel Wallace.
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