Human MigrationEmigration and ImmigrationHistory, AncientAmericasGeographyAfrica, NorthernGenetics, PopulationChromosomes, Human, YPopulation DynamicsHaplotypesPhylogenyDNA, MitochondrialClimateGene FlowAfricaGenetic VariationEthnic GroupsBiological EvolutionCell MovementAnimal MigrationGene FrequencyEvolution, MolecularCell Migration InhibitionGenotypeForeign-Body MigrationSequence Analysis, DNACell AdhesionCell Migration AssaysCells, CulturedMacrophage Migration-Inhibitory FactorsChemotaxisSignal TransductionTransendothelial and Transepithelial MigrationChemotaxis, LeukocyteCell ProliferationCell Line, TumorWound HealingNeoplasm Invasiveness