13A: Darwin and the Galápagos Islands (13.1)
13B: The Voyage of the Beagle: Darwin's Trip Around the World (13.1)
Galápagos Tortoise (13.1)
Galápagos Islands Overview (13.1)
Galápagos Marine Iguana (13.1)
Galápagos Sea Lion (13.1)
Grand Canyon (13.1)
How Do Environmental Changes Affect a Population? (13.2)
Sea Horses (13.2)
Soaring Hawk (13.2)
13C: Reconstructing Forelimbs (13.4)
EvolutionLab (13.5)
Key Concepts Quiz
How Can Frequency of Alleles Be Calculated? (13.7)
13D: Causes of Microevolution (13.9)
Tubeworms (13.9)
PopulationGeneticsLab (13.10)
Key Concepts Quiz
13E: Genetic Variation from Sexual Recombination (13.12)
What Are the Patterns of Antibiotic Resistance? (13.13)
Snake Ritual Wrestling (13.15)
Albatross Courtship Ritual (13.17)
Blue-footed Boobies Courtship Ritual (13.17)
Key Concepts Quiz