Mats Janzon found an orphaned baby otter and helped return it to the wild. Now, the otter often climbs aboard his kayak in a Swedish lake.

The mother recently unexpectedly gave birth at the Monterey Bay Aquarium. — -- A wild sea otter gave the Monterey Bay Aquarium in Monterey, Calif. a pleasant surprise when she gave birth to an ...

A second giant otter, Romo, has died at the Roger Williams Park Zoo just days after the death of his brother, Fernando. Romo, ...

Conservationists released a family of “Argentina’s top aquatic predator” for the first time since the species went considered locally extinct. Photo from Fundación Rewilding Argentina In a wetland of ...

In a wetland of northeastern Argentina, a family of the country’s “top aquatic predator” ventured outside their enclosure for the first time. They didn’t run or even wander very far, but that wasn’t ...