The playful North American river otter is equally at home in the water and on land. It makes its home in a burrow near the water's edge, and can thrive in river, lake, swamp, or estuary ecosystems.

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According to the Game Commission, an otter is the most adept in water of all the land mammals. It can travel underwater a quarter-mile without coming up for air. It can also dive 35 to 50 feet and ...