Inquiry project 3 Orca Whales


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Inquiry project 3 Orca Whales

  1. 1. Orca Whales Inquiry Project #3 by Lynsey Wilkie
  2. 2. Experience <ul><li>I have been fascinated with ocean and marine life since I was young. I have particularly been intrigued with Orca whales. You always hear about Shamu at sea World but I wanted to find out what a “killer” whale is like in the wild, not captivity. </li></ul>
  3. 3. Questions <ul><li>How big do they get? </li></ul><ul><li>Where do they live? </li></ul><ul><li>What do they eat? </li></ul><ul><li>How do they reproduce? </li></ul><ul><li>How do they communicate? </li></ul><ul><li>Are they violent? (nickname “killer” whale) </li></ul><ul><li>Do they have predators? </li></ul>
  4. 4. Physical Appearance <ul><li>Orcas grow to be about 27-33 feet long. </li></ul><ul><li>Weigh more than 8,000-12,000 pounds. </li></ul><ul><ul><li>The male orca is larger than the female. </li></ul></ul><ul><ul><li>They are the largest member of the dolphin family. </li></ul></ul><ul><li>The Orca's skin is mostly black with distinctive white patches. </li></ul><ul><li>Orcas have stocky bodies and a rounded head with a distinctive beak. </li></ul><ul><ul><li>They have a tall dorsal fin and large, paddle-like flippers. </li></ul></ul><ul><ul><li>The dorsal fin of the male is taller than a females. </li></ul></ul>
  5. 5. Environment <ul><li>Killer whales live in all oceans of the world but are usually found in the Arctic, the Antarctic, and areas where there’s cold water. </li></ul><ul><ul><li>Can be seen along the shores of Washington, Oregon, California, and Baja California and along the eastern coast of the United States. </li></ul></ul><ul><li>Some killer whales also have been seen in warm water areas such as Hawaii, Australia, the Galapagos Islands, the Bahamas, and the Gulf of Mexico.  </li></ul><ul><ul><li>Such sightings are not common  </li></ul></ul><ul><li>Some have even been found in fresh water rivers around the world such as the Rhine, the Thames, and the Elbe.  </li></ul><ul><ul><li>One traveled 110 miles up the Columbia River to eat fish. </li></ul></ul>
  6. 6. Food <ul><li>Killer whales hunt in pods. </li></ul><ul><ul><li>Family groups of up to 40 individuals. </li></ul></ul><ul><li>Different groups may prey on different animals and use different techniques to catch them. </li></ul><ul><ul><li>Resident pods tend to eat fish. </li></ul></ul><ul><ul><li>Transient pods tend to eat marine mammals. </li></ul></ul><ul><li>All pods use cooperative hunting techniques that can be compared to the behavior of wolf packs. </li></ul><ul><li>They eat on marine mammals. </li></ul><ul><ul><li>Seals, fish, sea lions, and even other whales. </li></ul></ul>
  7. 7. Reproducing <ul><li>Breeding may occur in any season, but it is most common in the summer.  </li></ul><ul><li>Killer whales are protective of their young, and other adolescent females often assist the mother in caring for them. </li></ul><ul><li>Mothers give birth every three to ten years, after a 17-month pregnancy. </li></ul><ul><li>  Calves nurse about 5 to 10 seconds at a time, several times an hour, 24 hours a day.  </li></ul>
  8. 8. Communication <ul><li>They use echolocation to communicate and hunt </li></ul><ul><ul><li>They make sounds that travel underwater until they encounter objects, then bounce back, revealing their location, size, and shape. </li></ul></ul><ul><li>Whales make a wide variety of communicative sounds. </li></ul><ul><li>Each pod has distinctive noises that its members will recognize. </li></ul>
  9. 9. Temperament <ul><li>Orca whales are known as “killers” because of their predator role in the ocean </li></ul><ul><li>They can be dangerous at times but can be trained and controlled </li></ul><ul><ul><li>Shamu at Sea World </li></ul></ul>
  10. 10. Predators <ul><li>Killer whales are top predators in the sea.  </li></ul><ul><ul><li>Sometimes sharks prey on older, younger, or ill killer whales. </li></ul></ul><ul><li>Killer whales get numerous natural diseases and parasites.  </li></ul><ul><ul><li>These parasites are tapeworms, roundworms, and flukes.  </li></ul></ul><ul><li>Whales may suffer from viral, bacterial, and fungal infections.  </li></ul><ul><li>They can develop stomach ulcers, skin diseases, and tumors.  </li></ul><ul><li>Hodgkin's disease has affected many Killer whales too. </li></ul><ul><li>Humans are a Killer whales threat </li></ul>
  11. 11. References <ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul>