Speciation, the divergence of one species into two or more species–an example depicted by animation
http://www.hhmi.org/biointeractive/anole-lizards-example-speciation
Speciation–examples.
Type into your browser: images for examples of speciation
Gray and Arctic fox–contrast
http://www.foxesandfriends.com/grayarcticfox.htm
Flounder (flat fish)–evidence for gradual change from “upright” body plan
Homologous structures
Type into your browser: images for homologous structures
Comparative embryology
Type into your browser: images for comparative embryology
Snakes–how they move, video
Vestigial organs–examples
Type into your browser: images for vestigial legs in snakes, whales, and manatees
Galapagos Island tortoises
Type into your browser: Galapagos Island tortoises
Species–problem of, “What is a species?”