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Darwin's theory of evolution states that all life has descended from a common ancestor. Darwin added to an old philosophy the mechanism of natural selection. Natural selection acts to preserve and accumulate minor advantageous genetic mutations. Biological evolution is when populations and species evolve over time. Darwin's theory of evolution and book “On the Origin of Species” was published in the 1850s.
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.