You might think river otters would be deathly afraid of alligators. After all, alligators do prey on otters. However, would you believe that sometimes it’s the other way around? A video taken in ...

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.

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 ...