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" "Finally, it may not be a logical deduction, but to my imagination it is far more satisfactory to look at such instincts as the young cuckoo ejecting its foster-brothers, ants making slaves, the larvae of ichneumonidae feeding within the live bodies of caterpillars, not as specially endowed or created instincts, but as small consequences of one general law leading to the advancement of all organic beings — namely, multiply, vary, let the strongest live and the weakest die.
Charles Robert Darwin (12 February 1809 – 19 April 1882) was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution. He proposed that evolution could be explained in part through natural and sexual selection. Prompted by awareness that Alfred Russel Wallace was developing similar theories he published his own sooner than he had originally intended. This theory is now an integral component of biological science.
Biography information from Wikiquote
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