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Principle #1- Genetic Variation Variation exists in rabbit species. Some are dark brown, and some are light brown.
Principle #2- Overproduction and the Struggle for Existences Rabbits will always produce more than the environment can handle, not all of them will survive.
Principle #3- Differential Survival and Reproduction Because the light rabbits are easier to be spotted by the wolf, the dark rabbits camouflage well.
Principle #3- Differential Survival and Reproduction Because the dark rabbits can camouflage well, they survive long enough to reproduce.
Principle #4- Changes in Gene Pool Because the rabbits have higher fitness, over time the frequency of the dark brown allele will increase in the gene pool.
and that's Nautral Selection.
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