Four decades ago, populations of the river otter, a playful, whiskered member of the weasel family, were so depleted that most states in the Chesapeake Bay region considered them endangered. Today, ...

Keeping tabs on river otters; accessible sailing adventures; the mysteries of freshwater mussels. River otters are popping up in some surprising places, and researchers want to know if these top ...

Fifty years ago, Colorado realized it had made a mistake. Its rivers, once alive with the movement of playful otters cutting through currents and pressing their tracks into sandbars, had gone quiet.

A family of otters in a Kentucky backyard racked up half a million views online. But how did they get there?

For nearly three decades, Cal Poly Humboldt Wildlife Professor Jeff Black and citizen scientists have been quietly documenting the lives of one of the North Coast’s most charismatic residents: river ...

MIAMI-DADE COUNTY, Fla. — In Florida, we’re used to spotting alligators, but some of the Everglades’ residents are far more elusive. Naturalist Alison Jocelyn was riding her bike at the Shark Valley ...

Fifty years ago, Colorado Parks and Wildlife took steps to return the river otter to waterways across the state. Now, the agency has dedicated the next 12 months to documenting how the playful, ...

People trained to experience world as otters, salmon and other River Tone creatures for pioneering research ...