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

Giant otters have no language barriers. And Rosario, a 63.9-pound grey giant otter with white spots on her chest who has lived at the Los Angeles Zoo is about to find that out. In mid-May she flew by ...

A popular giant otter at the Roger Williams Park Zoo had to be euthanized, despite efforts by zookeepers to treat its ailments with "groundbreaking stem cell therapy." ...

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 ...

Giant otters live in locally dense populations scattered through pockets of remote habitat. Outside the Pantanal, their other stronghold is Manu Biosphere Reserve, a river basin the size 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 ...