River otter Washington Department of Fish & Wildlife

River otter sightings on the rise across Ohio, even locally

Nature Lab Missouri Department of Conservation

You Otter Know: The Difference Between Sea and River Otters, by USFWS Columbia Pacific Northwest Region, USFWS Pacific NW Region

UW Researchers Study How to Improve Southern Sea Otters' Chances of Survival - SweetwaterNOW

WDFW seeking information on 14 wildlife species - KXRO News Radio

You Otter Know: The Difference Between Sea and River Otters, by USFWS Columbia Pacific Northwest Region, USFWS Pacific NW Region

Environment Washington - These Northern Sea Otters are listed as threatened under the Endangered Species Act. Because these otters are adorable and for many other reasons, the U.S. Fish and Wildlife Service

An Encounter with an Exceptional River Otter

Otters moving into North Idaho in increasing numbers - and not the gubernatorial kind

North American River Otter Missouri Department of Conservation

Environmental Threats Outreach – Washington Sea Grant

River Otter - Olympic National Park (U.S. National Park Service)

Northern River Otter (Lontra canadensis)

Urgent Comment – Idaho Otters At Risk – Friends of the Clearwater