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Snakes in sri lanka


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Snakes in sri lanka

  1. 1. Snakes IN Sri lanka M.M.Aznee Ahamed 08-C 23.02.2010 December 16, 2010 M.M.Aznee Ahamed
  2. 2. December 16, 2010 M.M.Aznee Ahamed
  3. 3. Contents <ul><li>Introduction. </li></ul><ul><li>Highly Poisonous Snakes In Sri Lanka - Cobra, 2 Species of Krait, 2 Species of Vipers. </li></ul><ul><li>Mildly Poisonous snakes. </li></ul><ul><li>Non poisonous snakes. </li></ul><ul><li>Preventing snakes’ bites. </li></ul>December 16, 2010 M.M.Aznee Ahamed
  4. 4. Introduction <ul><li>Snakes are reptiles. </li></ul><ul><li>They are legless. </li></ul><ul><li>They creep along the ground. </li></ul><ul><li>They are carnivores. </li></ul><ul><li>Some times they feed on prays much bigger than their mouth. </li></ul>December 16, 2010 M.M.Aznee Ahamed
  5. 5. <ul><li>Salivary glands are modified into poisonous glands. </li></ul><ul><li>Poison is send out by a canal and injured on to the pray by canine teeth . They are known as fangs . </li></ul><ul><li>Poison fangs are found only in poisonous snakes. </li></ul><ul><li>Snake poison is an protein solution. It contains enzyme and water. </li></ul><ul><li>They effect the nervous system of the pray. </li></ul>December 16, 2010 M.M.Aznee Ahamed
  6. 6. <ul><li>They have specially adapted mouths and jaws for this purpose. </li></ul><ul><li>The lower jaws consist of 2 halves. </li></ul><ul><li>They are fastened by an elastic substance. </li></ul><ul><li>So, the pray is paralyses. </li></ul><ul><li>And also the enzymes help the digestion of the pray. </li></ul><ul><li>Anti-venom vaccine is given to snake victims. </li></ul><ul><li>This can also be used to prepare drugs for Leprosy, Asthma and Measles. </li></ul>December 16, 2010 M.M.Aznee Ahamed
  7. 7. Highly Poisonous Snakes In Sri Lanka <ul><li>There are 96 species of snakes in Sri Lanka. 5 species are highly poisonous snakes, other 91 species are mildly poisonous and non-poisonous snakes. </li></ul><ul><li>Cobra, Indian Krait, Sri Lankan Krait, Saw scaled Viper, Russell's Viper are the highly poisonous snakes in Sri Lanka. </li></ul>December 16, 2010 M.M.Aznee Ahamed
  8. 8. Cobra <ul><li>Length:- 130-200 cm. </li></ul><ul><li>Special features:- Upper side of the body is light brown or grey. There are yellow or white stripes at intervals. It has a hood witch can be expanded. There are 2 black spots under side of the head. </li></ul><ul><li>Habitat:- During the day it looks for food while the night times hide in termite hills, rat holes and piles of fire wood. </li></ul>December 16, 2010 M.M.Aznee Ahamed
  9. 9. Indian Krait [Common Krait] <ul><li>Length:- 90-110 cm. </li></ul><ul><li>Special features:- Highly poisonous species of snake. Upper side of the body is blackish brown. Body is shiny. It even prays on other non poisonous snakes. </li></ul><ul><li>Habitat:- During night looks for food and during day hide under decaying leaves, loose soil or dry grass. Can be found in water bodies. </li></ul>December 16, 2010 M.M.Aznee Ahamed
  10. 10. Sri Lankan Krait <ul><li>Length:- 90 cm. </li></ul><ul><li>Special features:- Highly poisonous species of snake. Body is blackish purple. Has ring like white bands across the body. </li></ul><ul><li>Habitat:- Looks for pray in night. In day times hide under rotting leaves, piles of stone. When frightened coils up and hide it’s head in the coil. </li></ul>December 16, 2010 M.M.Aznee Ahamed
  11. 11. Saw scaled Viper <ul><li>Length:- 30-45 cm. </li></ul><ul><li>Special features:- Has a white bird’s foot shaped marked on the head Upper side of the body is greyish brown. It has diamond shaped marks on it’s body. </li></ul><ul><li>Habitat:- Nocturnal. During day hides under loose soil, drying leaves or shrubs. It jumps forward when attacking a prey and recoils to the normal position. </li></ul>December 16, 2010 M.M.Aznee Ahamed
  12. 12. Russell's Viper <ul><li>Length:- 80-120 cm. </li></ul><ul><li>Special features:- Upper side of the body is reddish brown. The under side is yellowish white. In the centre of the body and on either side there are 3 rows of black dots. </li></ul><ul><li>Habitat:- Most activities in the night. It hisses as a warning sign before attacking. </li></ul>December 16, 2010 M.M.Aznee Ahamed
  13. 13. Mildly Poisonous Snakes In Sri Lanka <ul><li>These snakes do not kill us. </li></ul><ul><li>They affect may persist for a few days. </li></ul><ul><li>It can effect kidneys and also it can cause sever pains and swelling. </li></ul><ul><li>E.g.:- Polong thelissa, Mukalang thelissa, Cat snake, Ahatulla, Malkarawala. </li></ul>December 16, 2010 M.M.Aznee Ahamed
  14. 14. Non Poisonous Snakes In Sri Lanka <ul><li>There are 59 species of snakes non poisonous snakes in Sri Lanka. </li></ul><ul><li>E.g.:- Python, Petal snake, Checkered keel ball. </li></ul><ul><li>Weather snakes are poisonous or not they are important to maintain the balance of the environment </li></ul>December 16, 2010 M.M.Aznee Ahamed
  15. 15. Preventing Snake Bites <ul><li>Keep the environment clean. </li></ul><ul><li>Not keeping piles of books or papers in corner of the house. </li></ul><ul><li>Closing termite hills and rat holes around the house. </li></ul><ul><li>Wear protective gears when walking to place where snakes are found. </li></ul><ul><li>Using a stick when walking on grass lands. </li></ul>December 16, 2010 M.M.Aznee Ahamed
  16. 16. Done By M.M.Aznee Ahamed THANK YOU December 16, 2010 M.M.Aznee Ahamed