1. Reptiles and Birds

2. REPTILE FACTS first to adapt completely to land

3. REPTILE FACTS scaly skin legs lower (not at 90 o angles) claws ectotherms

4. REPTILE FACTS most have three- chambered hearts some have four- chambered hearts which allow for more energy (O 2 blood separate)

5. REPTILE FACTS amniotic egg eliminates need to reproduce in H 2 O

6. REPTILE FACTS turtles have shells crocodiles & alligators are the largest snakes & lizards live almost everywhere Rhynchocephalia—primitive reptiles Only the tuatara still exists

7. AVIAN FACTS “Avian” means “bird” Only birds have feathers Evolved from therapods (feathered dinosaurs ) Archaepteryx (1 st bird?)

8. AVIAN FACTS Have wings & large sternum for flight

9. AVIAN FACTS 4-chambered heart Fast heart rate (1000 + beats/min) Special respiratory system

10. AVIAN FACTS Endotherms Internal reproduction Amniotic egg with hard shell Diversity of species