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Dolphins
Dolphins
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Dolphins

  1. 1. By Safi Khan Lifestyles and Habitats DOLPHINS
  2. 2. What is a Dolphin <ul><li>A Dolphin is a marine mammal that evolved from land </li></ul><ul><li>They are related to whales. </li></ul><ul><li>There are almost 30 to 40 species of Dolphins </li></ul><ul><li>They vary in sizes and weight </li></ul><ul><li>They are found worldwide </li></ul><ul><li>They feed on fish and squid </li></ul><ul><li>They are among the most intelligent of mammals </li></ul>
  3. 3. Different types of Dolphins <ul><li>Bottle nosed dolphin </li></ul><ul><li>Striped Dolphin </li></ul><ul><li>Short finned pilot whale </li></ul><ul><li>Hourglass Dolphin </li></ul><ul><li>Orka/Killer whale </li></ul><ul><li>Black Dolphin </li></ul><ul><li>Indo pacific Humpback whale </li></ul><ul><li>Amazon River Dolphin </li></ul><ul><li>Pigmy killer whale </li></ul>
  4. 4. Different types of Dolphins <ul><li>33 Different types of dolphins. </li></ul><ul><li>This is an image of the Bottle nose dolphin. </li></ul><ul><li>It is the most common. </li></ul><ul><li>Can grow up to 12 ft. </li></ul><ul><li>Can also weigh up to 650kg. </li></ul><ul><li>It eats fish, squid, and crustaceans. </li></ul><ul><li>Found in temperate seas worldwide. </li></ul><ul><li>Usually light gray in colour. </li></ul>
  5. 5. <ul><li>Characterised by its blue and white stripes on the flanks, eyes, back flipper and behind the ears </li></ul><ul><li>Have blue, white or pink underside </li></ul><ul><li>Adult weighs from 150-160kg </li></ul><ul><li>Adult length is from 2.4-2.6m </li></ul><ul><li>Feeds on fish </li></ul><ul><li>Found in temperate and tropical climates like the south Atlantic ocean, Mediterranean, the gulf of Mexico, the Indian and Pacific </li></ul>Image No 2:Striped Dolphin.
  6. 6. <ul><li>Also known as the black fish </li></ul><ul><li>Adults grow up to 6-8metres </li></ul><ul><li>Adults weigh up to 6 tonnes </li></ul><ul><li>They eat fish, sea lions, seals, walruses and even large whales </li></ul><ul><li>They are found in all oceans, most seas and prefer higher latitudes and coastal areas </li></ul><ul><li>Sophisticated hunting techniques. Very social and always live in groups </li></ul>Image No 3: Orka/killer whale.
  7. 7. Image No 4: Hourglass Dolphin. <ul><li>It got its name because of the white design of the main line on its side has the abstracted shape of an hourglass </li></ul><ul><li>Adult length is between </li></ul><ul><li>1.5-1.8 metres long </li></ul><ul><li>Adult weight can be up to 1000 kilograms which makes it one of the smallest dolphins </li></ul><ul><li>It eats small fish and squids. </li></ul><ul><li>It is found in the cold waters of the Antarctic </li></ul>
  8. 8. Image No 5: Irrawaddy Dolphin. <ul><li>Very light in colour </li></ul><ul><li>Its adult length varies between 2.3-2.75 meters </li></ul><ul><li>Its weight can reach from up to 130 meters </li></ul><ul><li>It feeds mainly on fish and fish eggs </li></ul><ul><li>Found mainly in brackish water and in the Indian Ocean </li></ul>
  9. 9. Brain/Body weight ratio/Intelligence compared to other mammals Species Simple brain –to body ratio Small birds 1:12 Humans 1:40 Mouse 1:40 cat 1:100 Dog 1:125 Frog 1:175 Shark 1:24960 Lion 1:550
  10. 10. Comparing Dolphins to other Mammals
  11. 11. Threats and dangers to Dolphins . <ul><li>The killer whale: They are known to kill their own kind </li></ul><ul><li>Humans: For food, leather, animal feed, oil. They are also used for entertainment and even the military to find underwater bombs </li></ul><ul><li>Sharks: They are considered to be the worst enemy and predator of the dolphin </li></ul><ul><li>They are considered a very intelligent species </li></ul><ul><li>groups across the world have called on a ban to killing and eating of dolphins chief amongst them:- The Whale and Dolphin Conservation Society </li></ul>
  12. 12. Acknowledgement: <ul><li>www.wikipedia.org </li></ul><ul><li>www.enchantedlearning.com </li></ul><ul><li>animal.discovery.com </li></ul><ul><li>Special gratitude goes to the W.D.C.S( The world dolphin conservation society), the global voice for the protection of dolphins in Chipppenham United Kingdom, who inspired my choice </li></ul>

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