The North American River Otter is an agile, playful mustelid equally at home in freshwater rivers and coastal marine waters. Its streamlined body, webbed feet, and powerful tail make it an exceptionally efficient swimmer capable of reaching 7 mph underwater. River otters are known for their playful behavior, frequently sliding down muddy or snowy banks for apparent enjoyment.
Best time to see a North American River Otter
The best time to see a North American River Otter is January–July, when about 61% of U.S. sightings happen, based on 22,887 research-grade iNaturalist observations.
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Recent North American River Otter sightings near you
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