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Saltwater crocodile

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A project for Marine Biology in which we had to choose a saltwater animal and make a presentation about it.

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Saltwater crocodile

  1. 1. Saltwater Crocodile Jonathan Davila Marine Biology, P.1 May 5, 2010
  2. 2. The Saltwater Crocodile
  3. 3. Classification <ul><li>Crocodylus Porosus </li></ul><ul><li>Kingdom: Animalia </li></ul><ul><li>Phylum: Chordata </li></ul><ul><li>Class: Reptilia </li></ul><ul><li>Order: Crocodylia </li></ul><ul><li>Family: Crocodylidae </li></ul><ul><li>Subfamily: Crocodylinae </li></ul><ul><li>Genus: Crocodylus </li></ul><ul><li>Species: C. porosus </li></ul>
  4. 4. Habitat & Range <ul><li>Habitat:  Tropical wet season: freshwater swamps, rivers, and inland lakes; dry season: estuaries, coastal brackish water, sometimes travel out to sea </li></ul><ul><li>Location:  Southeast Asia and northern Australia </li></ul><ul><li>Range: East Coast of India to Northern Australia to the Sea of Japan. </li></ul>
  5. 6. Feeding Habits <ul><li>Large adult saltwater crocodiles can potentially eat any animals within their range, including monkeys, kangaroos, wild boar, dingos, goannas, birds, domestic livestock, pets, water buffalo, bats, and even sharks. </li></ul><ul><li>Domestic cattle, horses, water buffalo and gaur, all of which may weigh over a ton, are considered the largest prey taken by male crocodiles. </li></ul>
  6. 7. Reproductive Strategies <ul><li>Breeding territories are established in freshwater areas. Females reach sexual maturity at 10 to 12 years of age. </li></ul><ul><li>Males mature later at around 16 years of age. 40 to 60 eggs are usually laid in mound nests made from plant matter and mud during the months of November & March. </li></ul><ul><li>If the nest is in danger of getting too dry, the female has been known to splash water onto it from a purpose-dug pool. Juveniles hatch after around 90 days. </li></ul>
  7. 8. General Characteristics <ul><li>The Saltwater Crocodile is the largest living reptile known & and is even larger then the Komodo Dragon . </li></ul><ul><li>Average lifespan in the wild:  Up to 70 years </li></ul><ul><li>The Saltwater Crocodiles are among the most aggressive of all marine animals & are known to attack & eat people . </li></ul><ul><li>They are more feared than Sharks . </li></ul>
  8. 9. Body Type & Appearance <ul><li>Size:  Adult male grow 15.7 - 23 ft & Females grow 8 - 10 ft. </li></ul><ul><li>Weight:  1,000 - 2,200 lbs </li></ul><ul><li>Some Saltwater Crocodiles have been known to grow up to 33ft, but they are rarely over 20ft. </li></ul>
  9. 10. Migration <ul><li>They have been reported to migrate considerable distances over land in search of more suitable habitat. </li></ul><ul><li>They inhabit rivers, lakes and other larger bodies of water in the plains and up to 600 m in the hills, throughout the Indian Subcontinent. </li></ul>
  10. 11. Endangered or Threatened <ul><li>The Saltwater Crocodile is an  endangered species , found throughout southeast Asia, and in northern Australia. </li></ul>
  11. 12. Diseases <ul><li>Some &quot;Chlamydia-infected&quot; tissue was put into a crocodile cell line, it was discovered to be associated with a virus. </li></ul><ul><li>Many more crocodiles die every year from unidentified causes which could also be viral-related. </li></ul>
  12. 13. Natural Predators <ul><li>Saltwater Crocodiles have no predators known to mankind. </li></ul>
  13. 14. Sensitivity to Pollution or Temperature Changes <ul><li>Saltwater Crocodiles are known to be sensitive to weather changes . </li></ul><ul><li>They live in hot areas so cold areas would affect them. </li></ul>
  14. 15. The End <ul><li>Hope you enjoyed my presentation! </li></ul>

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