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![]() edHelper.com Animal Themes Endangered Animals Theme Unit Mammals |
Sea Otters |
| edHelper's suggested reading level: | grades 4 to 7 | |
| Flesch-Kincaid grade level: | 7.78 |
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| Sea Otters |
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1 Sea otters are the smallest of all marine mammals, with a body length ranging from 3.3 to 4 feet and weight from 45 to 65 pounds. They are also the only marine mammals that do not have blubber, a layer of fat, under their skin to keep them warm in often cold or even frigid waters. (Seals and whales are two examples of marine mammals that have blubber.) To make up for this disadvantage, sea otters have the best fur that other animals can only dream of. In fact, their fur is the world's densest, with up to 1 million hairs per square inch!