Where there are otters, there are healthy waters. Which is why the nonprofit group monitoring the health of the Rivanna River ...

In the wilds of South America, one animal strikes fear into the hearts of even the fiercest predators: the Giant Otter, also ...

A family of giant river otters was released into the Iberá National Park in northeast Argentina on July 1. The endangered species, with no known breeding populations in Argentina over the past 40 ...

Idaho Power stated that river otters are frequently seen along the Snake River.

Conservationists released family of giant river otters in Iberá wetlands, a first-of-its-kind reintroduction for species considered locally extinct for decades.

The Myakka is also a key fishery nursery area with most recreationally and commercially important fish and shellfish species ...

Otters aren't rare to Wisconsin, but it is unusual to see them in the wild. That made Thursday exciting for those who spotted one in the La Crosse River marsh.

Two North American river otters have a new outdoor habitat at the National Mississippi River Museum and Aquarium.