Evolution
Natural selection, speciation and the evidence.
01Natural SelectionExplain Darwin's theory step by step, with real examples like antibiotic resistance.Read lesson →02Evidence for EvolutionWeigh the fossil, anatomical, embryological and DNA evidence for common ancestry.Read lesson →03How Speciation HappensShow how isolation and selection split one species into two.Read lesson →04Classification and PhylogenyUse the taxonomic hierarchy and DNA data to build evolutionary trees.Read lesson →