Learn about evolution, the process in which groups of organisms change in their genetic makeup and heritable features over time. Natural selection is an important mechanism of evolution, one that can cause groups to become better suited to their environments over generations.
9714_Natural_selection_and_the_owl_butterfly.html
9717_Bozeman_science_evidence_for_evolution.html
9713_Evolution_clarification.html
9715_Variation_in_a_species.html
9710_Introduction_to_evolution_and_natural_selection.html
9716_Evidence_for_evolution.html
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