Right below where we’re parked in the McHenry Recreation Area, there is a turn in the Stanislaus River with three Otters looking for dinner. The river is especially dirty today because of the heavy rainfall during the last 3 days. The Otters were so shy I hfad to hide to shoot the video.
Wikipedia: The North American River Otter (Lontra canadensis), also known as the Northern River Otter or the Common Otter, is a semi-aquatic mammal endemic to the North American continent, found in and along its waterways and coasts. An adult river otter can weigh between 11 and 30 lbs. The river otter is protected and insulated by a thick, water-repellent coat of fur.
The otter establishes a burrow close to the water’s edge in river, lake, swamp or estuary ecosystems. Their dens have many tunnel openings—one of which generally allows the otter to enter and exit into the water. Female otters give birth in these underground burrows, producing litters of one to six young.
In the third scene of this short video you can see the exterior of a riverside den with an Otter outside it.