To add to Alaina Mencinger’s excellent article (“Beavers, acequias and New Mexico’s watersheds,” June 6): Beaver dams don’t just recharge groundwater and create habitat for birds — they also help ...

North American river otters eat, play and defecate in the same place. And their unhealthy habits make them ideal for detecting future health threats in the environment. Kristen Goodhue A North ...

Over more than 18,000 acres in the Great Parks of Hamilton County, individuals and trail cameras are capturing images of the diverse and flourishing wildlife throughout 22 parks and conservation areas ...

The international journal 'Science' featured on its cover this week a sea otter floating on water with a rock on its chest. The phrase 'POWERFUL TOOLS' is also visible in the bottom left corner of the ...

Three North American river otters play in the snow on the docks of the Smithsonian Environmental Research Center. Detected with SERC’s night-vision wildlife cameras. North American river otters have ...

Question: We were walking through Rotary Riverside Park in Brainerd and saw three animals cross the trail. They were too large to be muskrats, but didn’t look like beavers. Could they have been otters ...

A North American river otter (Lontra canadensis) wanders through a forest at the Smithsonian Environmental Research Center. Credit: Calli Wise, Smithsonian Environmental Research Center North American ...