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Killer Whales |
| edHelper's suggested reading level: | grades 6 to 7 | |
| Flesch-Kincaid grade level: | 6.08 |
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Killer Whales
By Sheri Skelton |
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1 Killer whales, or orcas, are the world's largest dolphins. They are also very powerful predators. They are fast swimmers and can maneuver themselves very well in the water. They live in all the oceans of the world but are most numerous in the Arctic or Antarctic. The bodies of killer whales are streamlined and sleek. They have adapted to living in very cold waters. Underneath their skin, killer whales have a thick layer of body fat, or blubber, that helps to keep them warm. Killer whales also have a high rate of metabolism. This helps them generate more body heat.![]() |
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Mammals
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Oceans
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