As a volunteer for the River Otter Ecology Project I observed SF’s only resident wild #riverotter daily, tracking his behavior.

I watched ‘Sutro Sam’ collect large amounts of vegetation and taking it to his den. As far as we know, this is the only time this kind of behavior has been observed and photographed in North American River Otters. Has anyone seen anything similar?

#otter #wildlife #urbanwildlife #photography #naturalist #wildlifephotography #question #sanfrancisco #lontracanadensis