1. Dr. Shannon Bros-Seemann San Jose State University Natural Selection – A Summary

2. What is Natural Selection? Need variation Differences in breeding success http://biology.ucf.edu/~ehoffman/labpictures.html

3. What is Natural Selection? Need variation Difference s in breeding success –Reproduc e Frog pictures: http://biology.ucf.edu/~ehoffman/labpictures.html

4. What is Natural Selection? Need variation Difference s in breeding success –Reproduc e And/OR –Survival Frog pictures: http://biology.ucf.edu/~ehoffman/labpictures.html hawk picture: ttp://www.birdzilla.com/bird-identification/which-bird-did-you- see/search-by-habitat/flying.html

5. What is Natural Selection? Reproduction and survival = FITNESS The MOST FIT population is the one with the most successful offspring! Darwin meant this when he referred to: “Survival of the FITTEST” http://www.3quarksdaily.com/3quarksdaily/2010/07/darwins-method.html NOT survival of the toughest! http://www.lifesip.com/images/competition-7.gif

6. What is Natural Selection? Which had the greatest fitness? Frog pictures: http://biology.ucf.edu/~ehoffman/labpictures.html hawk picture: ttp://www.birdzilla.com/bird-identification/which-bird-did-you- see/search-by-habitat/flying.html

7. Natural Selection is a process by which Favorable traits (i.e increase fitness) passed on to the offspring will become more common. Unfavorable traits will become less common. Whatever works! ( ultimately increasing reproduction )