Reproduction will only occur within a sub-population, which will lead to the production of a new species. Geographical isolation: Since this population of beetles is spread over a large area, reproduction cannot occur between individuals of sub-populations. These sub-populations can lead to the formation of an entirely new species. As a result, sub-populations of beetles are spread over that area. Beetles are small insects, which cannot travel to far off places. Hence, the population of beetles in that area is very large. These two separate populations of beetles are spread on a wide mountain range since their food is widely distributed. Let us consider that a population of beetles has split into two separate populations, which cannot reproduce with each other. In order to understand speciation, let us consider the example of beetles. Speciation may be defined as an evolutionary process, which involves the formation of one or more species from an existing species.
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