1. VERTEBRATES Animals with backbones

2. Animals with backbones or vertebrates are classified into 5 subgroups. Fish is the largest of vertebrates.

3. FISH • Breathe through a set of gills • Covered with hard scales • Reproduce by laying soft, non-shelled eggs • Cold blooded

4. FISH

5. Amphibians • Breathe through gills while young • Develop and breath through lungs as adults • Covered in skin • Lay soft shelled eggs • Cold blooded • Include frogs, salamanders, toads

6. Salamander

7. SALAMANDER

8. FROGS

9. REPTILES • They have lungs • Covered with Scales • Lay hard shelled eggs • Cold blooded • Some have shells • Lizards, snakes, turtles, crocodiles, alligators

10. Alligators and Crocodiles

11. Turtles and lizards

12. SNAKES

13. BIRDS • Have lungs • Have feathers • Lay hard shelled eggs • Warm Blooded • Light hollow bones

14. BIRD

15. OSTRICH

16. MAMMALS • Have lungs • Have hair or fur • Have live births • Produce milk • Warm blooded

17. MAMMALS

18. BOTTLED NOSE DOLPHIN

19. WHALES