The last time I wrote about otters, I stated that sea otters are in my top 10 list of “most appealing adult mammals.” First, they are engagingly cute, especially when floating on the ocean’s surface ...

Scientists discovered that river otter droppings contain large numbers of parasites that infect the animals’ prey, indicating that otters may play a significant role in shaping local food webs.

Learn how river otters are being restored and why they matter for aquatic ecosystems at a free NCTC lecture Jan. 15.

While sea otters spend the majority of their time in the water, river otters will often run and play on land. This leads to some interesting behavior that reminds us of fun childhood games: the “run ...

FOREST KNOLLS, Calif. -- River otters used to be in almost every creek in the Bay Area, but they were driven out decades ago by water pollution, hunting, and the loss of wetland habitat. Now, thanks ...

North American river otters, known as cute and playful swimmers, once lived in every major river system in Pennsylvania. But because of development, agriculture and industrialization, otters had ...

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 ...