Introduction to evolution and natural selectionApe clarificationIntelligent design and evolutionEvolution clarificationNatural selection and the owl butterflyDarwin, evolution, & natural selectionVariation in a speciesEvidence for evolutionEvidence for evolution
Allele frequencyHardy-Weinberg equationApplying the Hardy-Weinberg equationDiscussions of conditions for Hardy-WeinbergAllele frequency & the gene poolMechanisms of evolutionGenetic drift, bottleneck effect, and founder effectGenetic driftNatural selection in populations
Taxonomy and the tree of lifeSpeciesSpeciationSpecies & speciationBiodiversity and natural selectionGenetic variation, gene flow, and new speciesDiscovering the tree of lifeUnderstanding and building phylogenetic treesPhylogenetic treesBuilding a phylogenetic tree
About this unit
Discover the diversity of life on Earth and the forces that shape it! In this section, you can learn about evolution, natural selection, and the tree of life, as well as basic population genetics. Special bonus: take a peek into the amazing worlds of bacteria and viruses.