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SNAKES VS LIZARDS
- 1. SNAKES VS LIZARDS ALI HASSAN VIRK
- 2. DIFFERENCE BETWEEN SNAKES AND LIZARDS LIZARD Lizard refers to a reptile that typically has a long body and tail, four legs, movable eyelids, and a rough, scaly, or spiny skin SNAKES Snake refers to a long limbless reptile which has a short tail, and jaws that are capable of considerable extension.
- 3. LIZARD Kingdom: Animalia Phylum: Chordata Class: Reptilia Superorder: Lepidosauria Order: Squamata
- 4. Brief Description Most lizards are quadrupedal, running with a strong side-to- side motion. Others are legless, and have long snake- like bodies. Some such as the forestdwelling Draco lizards are able to glide. They are often territorial, the males fighting off other males and signalling, often with brightly colours, to attract mates and to intimidate rivals. Lizards are mainly carnivorous, often being sit- and-wait predators; many smaller species eat insects, while the Komodo eats mammals as big as water buffalo.
- 7. Lizard Species present in Pakistan Family Gekkonidae (eyelid and lidless geckoes) Agamura femoralis • Sharp-tailed Spider Gecko • Agamura persica persica • (Persian Spider Gecko • Bunopus tuberculatus (Baluch Rock Gecko)
- 8. PAKISTANI SPECIES Crossobamon eversmanni (Baluchistan Sand Gecko or Comb-toed Gecko) Crossobamon orientalis (Sind Gecko Cyrtodactylus walli (Chitral Gecko or Swat Stone Gecko) Cyrtopodium agamuroides (Nikolsky Spider Gecko
- 13. Laudakia fusca
- 15. • (Kashmir Rock Agama)
- 16. Phrynocephalus clarkorum (Clark's Toad-headed Agama) Phrynocephalus luteoguttatus (Yellow-speckled Toad-headed Agama)
- 18. • Phrynocephalus scutellatus Trapelus agilis
- 19. 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)
- 20. Chamaeleo zeylanicus (Indian Chameleon or Ceylon Chameleon
- 23. • Varanus flavescens • Varanus griseus
- 24. Snake Kingdom: Animalia • Phylum: Chordata • Class: Reptilia • Order: Squamata • Clade: Ophidia • Suborder: Serpentes
- 25. Brief Description • 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.
- 26. TYPES OF SNAKES: • • Snake Species. • • King Cobra. • • American Copperhead. • • Black Mamba. • • Corn Snake. • • Rattlesnake. • • Boa Constrictor. • • Eastern Coral Snake. • • Black Rat Snake. • • Burmese Python
- 27. Major Differences LOCOMOTION Lizards have legs and snakes do not have legs. While lizards move on four limbs, a snake moves by undulating its body and also with the help of its ventral scales. The ventral scales give the snakes a good grip on the surface. Sense of hearing 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 only through vibrations from the ground.
- 28. 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
- 29. 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.