1. Geeked About Beaks

2. Beak adaptations to food sources

3. Selection can lead to adaptation Survival and Reproduction Beak Size

4. Selection can lead to adaptation Survival and Reproduction Beak Size

5. Selection can lead to adaptation Survival and Reproduction Beak Size

6. Selection can lead to adaptation Survival and Reproduction Beak Size

7. Selection can lead to adaptation Survival and Reproduction Beak Size

8. Different kinds of selection

9. Disruptive selection New Species? Survival and Reproduction Beak Size

10. Example of disruptive selection African fire-bellied seed-cracker finch Can open tough shells of large seeds Better at handling small seeds

11. Example of disruptive selection Pocket mice in New Mexico

12. Example of disruptive selection Pocket mice in New Mexico

13. Example of disruptive selection Magnified 100x Gill rakers trap food that enter a fish’s mouth so the fish can eat it Short gill rakers are good for big food Long gill rakers are good for tiny food Blood worms Plankton Stickleback fish in Canada