12 Why is Darwins theory of natural selection sometimes described as survival of the fittest?

because all living organisms are born with genes that make them unique. They are passed down by our parents. when a disease or predator comes into an environment, only the creatures with the gene to survive or live through the 'disaster or problem.' this is usually called survival of the fittest due to only the best or 'fittest' are able to survive. Then the creature that survived has off spring that in turn get that gene and allows for the offspring to survive as well. this alters the species and usually considered a mutation. Like humans used to have webbed feet, but the first human or ape that lost the webbed feet was able to survive and thus continued the mutation until today it is accepted as normal versus our original webbed feet.

Because those best equipped to "survive" prosper. They were the "most fit" to endure and prosper in their particular environment.

It is described as the survival of the fittest is because the more an animal is fit for his or her environment the better chances it has of survival. If the animal is fit it will be able to catch his or her prey and if not he or she will die of starvation.

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