Giant river otters, with vulnerable young cubs, discover a large black caiman in their territory. Identifying it as a threat they work together, ...

Giant otters can grow to nearly 6 feet in length and are the largest otter species on the planet. In addition to being huge, giant river otters also have a (relatively) huge vocabulary.

Life has been unfair to the giant river otter. Although it holds the title of being the world’s longest weasel, it’s classified as endangered. Luckily for a few of the creatures, the Santa Ana ...

Giant river otters are the longest of the world's 13 otter species with males reaching a length of 6 ft. and a weight of approximately 75 lbs. These endangered animals are commonly called "River ...

Seeing the lodge’s black caiman research first-hand is what draws most visitors to this remote locale, however, and it’s a real thrill to venture out onto the river by boat at night to watch ...

Conservationists released family of giant river otters in Iberá wetlands, a first-of-its-kind reintroduction for species considered locally extinct for decades.

Otterly Fascinating Inquisitive, formidable and endangered, giant otters are luring tourists by the thousands to Brazil’s unspoiled, biodiverse waterscape ...

Zoo Miami annually supports Proyecto Arirahnas (The Giant Otter Project) in Brazil dedicated to strengthening the conservation and the ecosystem of the species.

The Houston Zoo offers a live cam showing its giant river otters in action. The animals can be seen swimming, lounging in the stream solo or with other otters and generally walking about.

Find out why the world’s largest otter has become endangered. Learn how their webbed feet, fur, and ears are perfectly adapted to their riverine environment.

Two Hungry Jaguars Are No Match for This Plucky Otter The formidable predators came face to face recently in Brazil's Pantanal.

Giant river otters fight a caiman.