What life is


Evolution - a unifying principle of biology

The theory of evolution states that modern organisms are descendants of ancient organisms and that modifications accumulated over time explain the apparent changes and differences among modern forms of life. This 'descent with modification' theory was central to Charles Darwin's argument of biological evolution, an idea spearheaded by Jean-Baptiste Lamarck (1744-1829). The idea of evolution proposes that animals and plants can change over time, and are not static forms created at once and independent of each other. Lamarck and Darwin proposed different explanation of how these changes may occur. Darwin's proposal of natural selection has proved correct and evidence from biology, earth science, and cosmology all corroborate the basic mechanism of natural selection.

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