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In scientific terms, evolution is both a theory and a fact. A fact refers to a scientific explanation that has been tested and confirmed often enough that there is no reason to keep looking for additional examples. Scien... More »

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Fossils provide a record of life on Earth from as long as 1 billion years ago, showing how organisms, animals and plants have changed over time. These records can be dated, so they are a physical representation of evolut... More »

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The theory of evolution is supported by biochemical evidence; many of the same molecules and biochemical processes occur within all living organisms, from single-cell bacteria to humans. Originally, scientists couldn't u... More »

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Despite the fact that he refused to believe in evolution, naturalist and palaeontologist Georges Cuvier (1769-1832) contributed to Charles Darwin's theory of evolution, particularly in terms of natural selection, by esta... More »

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The answer to the question of whether evolution is a theory or fact is "both," and the answer to the question of whether extinction of the dinosaurs affected other species is "yes." Another question is whether the evolut... More »

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Charles Darwin completed his research supporting the theory of evolution while travelling on HMS Beagle between 1831 and 1836, sailing with it to places important to his studies, including the Cape Verde Islands, Quail I... More »

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Charles Darwin is best known for establishing a theory of evolution that explains biological changes among the species of the Earth. His belief that most species evolved through the process of natural selection also made... More »

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