Darwinian demon
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A Darwinian demon is a hypothetical organism that would result if there were no biological constraints on evolution. Such an organism would maximize all aspects of fitness simultaneously and would exist if there were no limitations from available variation or physiological constraints. It is named for the English scientist Charles Darwin, who first posited evolution in his work On the Origin of Species in 1859. Such organisms would reproduce directly after being born, produce infinitely many offspring, and live indefinitely. Even though no such organisms exist, biologists use Darwinian demons in thought experiments to understand different life history strategies among different organisms.