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| | Animal Fact Sheets (Site not responding. Last check: 2007-10-30) |
 | | Otters use their hind limbs and undulating movement of their tail as the main source of propulsion through water, but they may also use their forelimbs for paddling. |
 | | Otters are also very vocal, and communicate to one another with a large variety of calls, such as whistles, buzzes, twitters, staccato chuckles and chirps. |
 | | However, since 1976, efforts have been made to reintroduce the North American river otter into several of the interior states of the U.S. Nevertheless, as their numbers continue to decrease, the future existence of all species of otters in the wild is in jeopardy. |
| www.zoo.org /educate/fact_sheets/otter/otter.htm (1112 words) |
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