Learn about Darwin's theory of evolution and natural selection on Khan Academy.

Learn about natural selection, the process by which organisms better adapted to their environment tend to survive and produce more offspring.

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Learn about the Hardy-Weinberg mechanisms of evolution and how they affect allele and genotype frequencies in populations.

In this unit, you'll learn all about the fascinating processes of natural and artificial selection. Discover the key roles that adaptation and environmental change play in shaping how species evolve over time.

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Intricate patterns, such as the owl butterfly's eye-like wing markings, evolve through natural selection. Over thousands of generations, small variations in wing patterns offer slight survival advantages, leading to the dominance of beneficial traits.

Learn about animal behavior and how animals respond to their environment in this introductory course on Khan Academy.

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Learn about phylogenetic trees and their role in understanding evolutionary relationships on Khan Academy.