1. Extant Reptiles

2. Scales, scutes and osteoderms.

3. Reptile Skin

4. Scleral ossicles, cone lipid droplets and Brille

5. Snake vs Lizard Eyes

6. Snake vs. Lizard Eyes

7. Pit organs

8. Pit Morphology & Vision

9. Pit enervation

10. Tuatara

11. Squamate Hemipenes

12. Tooth Implantation

13. Tail Fracture Planes

14. Tail Autotomy

15. Limb Reduction

16. Squamate DNA Phylogeny

17. Snake Bodyform

18. Snake Phylogeny (morphology)

19. Snake vs. Lizard Skull

20. Snake Phylogeny (DNA)

21. Colubroid Snake Phylogeny

22. Phylogeny of Crocodylia

23. Saltwater Crocodile

24. Gavialidae

25. Turtle Girdles

26. Carapace Terminology

27. Turtle Skulls

28. Head Retraction

29. Turtle Phylogeny