Reptiles

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Reptiles

  1. 1. Reptiles Created by Geonyzl Alviola
  2. 2. What is a reptile? <ul><li>characterized by breathing air, a &quot;cold-blooded&quot; </li></ul><ul><li>laying tough-shelled amniotic eggs </li></ul><ul><li>With scales and/or scutes </li></ul>
  3. 3. Four Major Groups of Reptiles <ul><li>1. Crocodilia — crocodiles, gharials, caimans and alligators: 23 species </li></ul><ul><li>2. Sphenodontia — tuataras from New Zealand: 2 species </li></ul><ul><li>3. Squamata — lizards, snakes and amphisbaenids (&quot;worm-lizards&quot;): about 7,900 species </li></ul><ul><li>4. Testudines — turtles and tortoises: approximately 300 species </li></ul>
  4. 4. Crocodilia <ul><li>The crocodile has a large teeth and strong jaws. </li></ul><ul><li>Crocodile skin is protected by bony plates which are called osteoderms. </li></ul><ul><li>They have a well-functioning teeth structure which interlocks when their mouth is closed and it consistent 30 to 40 teeth in each jaw. </li></ul>
  5. 5. <ul><li>One odd fact about crocodile’s jaw is its power difference. </li></ul><ul><li>On ground, crocodile can move fast and it use both belly crawl and relatively short four legs. </li></ul>
  6. 6. Squamata <ul><li>or the scaled reptiles, is the largest recent order of reptiles, </li></ul><ul><li>including lizards and snakes. </li></ul><ul><li>Members of the order are distinguished by their skins, which bear horny scales or shields. </li></ul>
  7. 7. Snakes <ul><li>suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external ears. </li></ul><ul><li>There are two kinds of snakes: </li></ul><ul><li>1. venomous </li></ul><ul><li>2. nonvenomous </li></ul>
  8. 8. Venomous snakes <ul><li>that uses modified saliva, snake venom, </li></ul><ul><li>usually delivered through highly specialized teeth such as hollow fangs, for the purpose of prey immobilization and self-defense. </li></ul><ul><li>have an elliptical pupil like a cat's eye </li></ul><ul><li>will have a small depression between the eye and the nostril. </li></ul>
  9. 9. <ul><li>This is called a pit (hence &quot;pit viper&quot;), which is used by the snake to sense heat in their prey. Coral snakes are not pit vipers, and lack this feature. </li></ul>
  10. 11. Nonvenomous <ul><li>rounded head and venomous snakes will have a more triangular head. </li></ul><ul><li>Nonvenomous snakes usually have a round pupil in the eye. </li></ul>

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