SNAKES VS LIZARDS

DIFFERENCE BETWEEN SNAKES AND LIZARD ,BEST PRESENTATION PREPARED BY ALI HASSAN ,THIS WILL BE REALLY HELPFUL SPECIALLY FOR SCIENCE STUDENTS (ZOOLOGY ,BIOLOGY STUDENTS)

1. ALI HASSAN VIRK

2. Lizard Species present in Pakistan

3. Family Agamidae 22 species

4. Brachysaura minor   Calotes versicolor

5. Japalura kumaonensis Paralaudakia badakhshana

6. Paralaudakia caucasia Paralaudakia himalayana

7. Laudakia fusca

8. Laudakia nupta

9. Laudakia tuberculata (Kashmir Rock Agama)

10. Phrynocephalus clarkorum   (Clark's Toad-headed Agama)

11. Phrynocephalus ornatus Phrynocephalus maculatus  

12. Phrynocephalus scutellatus Trapelus agilis  

13. Trapelus ruderatus   (Horn-scaled Agama or Baluch Ground Agama) Uromastyx asmussi   (Iranian Mastigure ) Uromastyx hardwickii   (Hardwick's Spiny-tailed Lizard or Indian Spiny-tailed Lizard)

14. Family   Chamaeleonidae Chamaeleo zeylanicus   (Indian Chameleon or Ceylon Chameleon

15. Family  Varanidae   (monitor lizards ) 3 species

16. Varanus bengalensis

17. Varanus flavescens Varanus griseus

18. Snake Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Squamata Clade: Ophidia Suborder: Serpentes

19. A long limbless reptile which has no eyelids, a short tail, and jaws that are capable of considerable extension. Most snakes have a venomous bite. Snakes are elongated, legless, carnivorous reptiles of the suborder Serpentes .

20. TYPES OF SNAKES: • Snake Species. • King Cobra. • American Copperhead. • Black Mamba. • Corn Snake. • Rattlesnake. • Boa Constrictor. • Eastern Coral Snake. • Black Rat Snake. • Burmese Python

21. Summarization of the differences 1. Lizards have legs and snakes do not have legs. 2. While lizards move on four limbs, a snake moves by undulating its body and also with the help of its ventral scales. 3. Lizards can hear sounds through their external ear openings. On the other hand, snakes only hear through the skull bone. The snakes, which have no external ears, hear

22. Summarization of the differences only through vibrations from the ground. 4. While lizards can close their eyes, snakes cannot close their eyes. 5. Lizards have two moveable eyelids, but a transparent scale is what covers the eye of a snake. 6. A lizard sheds its tail when agitated or in times of danger, but snakes shed their skin. 7. While a lizard comes with two lungs, a snake has only one lung that works.