The playful North American river otter is equally at home in the water and on land. It makes its home in a burrow near the water's edge, and can thrive in river, lake, swamp, or estuary ecosystems.

"Billy & Molly: An Otter Love Story," from National Geographic and Silverback Films, is a heart-warming documentary about the ...

This story appears in the February 2013 issue of National Geographic magazine. I am hunting otters with Charlie, the two of us in wet suits, our bodies submerged, level with the sea. The tankers ...

Today, National Geographic released the trailer for the critically acclaimed documentary special Billy & Molly: An Otter Love ...