2. Chapter 29

3. 29.1 CLASS REPTILIA – pg. 852 “to creep” Includes snakes, turtles, tortoises, lizards, alligators, crocodiles, tuataras Dry, scaly skin Claws Gecko

5. CLASS REPTILIA Gas exchange: lungs Most have 3 chambered hearts Ectothermic Molting - shedding of the old skin Diamondback Terrapins hatching

6. Hognose snakes hatching Internal fertilization / external development (most)

8. Galapagos Tortoises Diamondback Terrapin Tortoise Loggerhead Turtle Hawksbill Turtle

9. Turtle or Tortoise?

10. CLASS REPTILIA Jacobson’s organ - tastes the air

11. Only in Thailand!

13. 29.2 Class Aves: pg. 861 includes all birds

14. CLASS AVES - “birds” All have feathers Not all can fly Peacocks Penguin

15. CLASS AVES Four chambered heart Endothermic Pelicans

16. CLASS AVES No teeth

17. CLASS AVES Preening - feather maintenance Molting - shedding of old feathers Bones - thin & hollow Less bone = less muscle

18. CLASS AVES Internal fertilization / external development Incubation Gas exchange – Air sacs & lungs

19. CLASS AVES Variety of: – Legs – Feet – Wings – Eyes – Claws – Beaks

20. Pelicans

21. Birds evolved from the Theropod dinosaur