Otters are among the most adaptable mammals alive, thriving everywhere from icy coasts to steamy rainforests. This list reveals the eight largest species, from the massive giant otter of South America ...

The latest research adds a dimension of clarity to sea otter health. So do new discoveries about the ways to treat ...

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 ...

A paper published in Environmental Toxicology and Chemistry, finds high quantities of toxic "forever" chemicals in sea otters ...

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 ...