Otters are remarkable creatures, known for their adorable looks, playful personalities, and intelligence. They inhabit lakes, ...

The two different types of otters are related, but they differ in key areas, inclulding their diets. Asian small-clawed otters eat shellfish and crabs, while smooth-coated otters pursue fish.

New research shows that otters can learn to solve puzzles by watching other otters do them — and they seem to retain long-term memory for accomplishing the feats.

Using tools helped individual otters to meet their calorie needs by branching out into different types of prey. The study found female otters had less tooth damage than male otters did.

Their "vocabulary" is at least 12 or more different types of otter calls and basic instinctive cries.

College students at Weber State University are studying river otters and sharing findings with the Loveland Living Planet Aquarium to understand migration and population of the animals.

Rocket and Slinky, two adorable and rather mischievous Asian small-clawed otters, just celebrated their second birthday at the Denver Zoo.

Nature: River otters Residents of Alaska's largest city often contend with bears and moose, but state officials are warning of another wild animal that has been causing problems: river otters.

New research shows that otters can learn to solve puzzles by watching other otters do them — and they seem to retain long-term memory for accomplishing the feats.

The two different types of otters are related, but they differ in key areas, inclulding their diets. Asian small-clawed otters eat shellfish and crabs, while smooth-coated otters pursue fish.